Medical Care Inflation Data
Medical Care Inflation Rate
Medical care in U.S. city average, all urban consumers, not seasonally adjusted
+2.64% YoY
Best YoY Inflation
-1.42%
September 2023
Joe Biden (Democrat)
Worst YoY Inflation
+13.9%
April 1975
Gerald Ford (Republican)
Average YoY by Party
Republican: +5.79%
Democrat: +4.16%
Inflation Trend Over the Last 8 Years
Full Inflation History
| Date | Value | MoM | YoY | President | Party |
|---|---|---|---|---|---|
| March 2025 | 574.7 | +0.25% | +2.64% | Donald Trump (2nd Term) | Republican |
| February 2025 | 573.3 | +0.25% | +2.89% | Donald Trump (2nd Term) | Republican |
| January 2025 | 571.9 | +0.48% | +2.63% | Donald Trump (2nd Term) | Republican |
| December 2024 | 569.2 | +0.07% | +2.84% | Joe Biden | Democrat |
| November 2024 | 568.8 | +0.16% | +3.08% | Joe Biden | Democrat |
| October 2024 | 567.9 | +0.28% | +3.29% | Joe Biden | Democrat |
| September 2024 | 566.3 | +0.33% | +3.25% | Joe Biden | Democrat |
| August 2024 | 564.4 | +0.07% | +2.98% | Joe Biden | Democrat |
| July 2024 | 564.0 | -0.22% | +3.17% | Joe Biden | Democrat |
| June 2024 | 565.3 | +0.19% | +3.26% | Joe Biden | Democrat |
| May 2024 | 564.3 | +0.47% | +3.07% | Joe Biden | Democrat |
| April 2024 | 561.6 | +0.3% | +2.63% | Joe Biden | Democrat |
| March 2024 | 559.9 | +0.48% | +2.21% | Joe Biden | Democrat |
| February 2024 | 557.2 | 0% | +1.41% | Joe Biden | Democrat |
| January 2024 | 557.2 | +0.67% | +1.05% | Joe Biden | Democrat |
| December 2023 | 553.5 | +0.31% | +0.45% | Joe Biden | Democrat |
| November 2023 | 551.8 | +0.37% | +0.17% | Joe Biden | Democrat |
| October 2023 | 549.8 | +0.24% | -0.77% | Joe Biden | Democrat |
| September 2023 | 548.4 | +0.06% | -1.42% | Joe Biden | Democrat |
| August 2023 | 548.1 | +0.25% | -0.97% | Joe Biden | Democrat |
| July 2023 | 546.7 | -0.13% | -0.52% | Joe Biden | Democrat |
| June 2023 | 547.4 | 0% | +0.13% | Joe Biden | Democrat |
| May 2023 | 547.4 | +0.04% | +0.72% | Joe Biden | Democrat |
| April 2023 | 547.2 | -0.11% | +1.05% | Joe Biden | Democrat |
| March 2023 | 547.8 | -0.31% | +1.5% | Joe Biden | Democrat |
| February 2023 | 549.5 | -0.35% | +2.34% | Joe Biden | Democrat |
| January 2023 | 551.4 | +0.08% | +3.06% | Joe Biden | Democrat |
| December 2022 | 551.0 | +0.03% | +3.96% | Joe Biden | Democrat |
| November 2022 | 550.8 | -0.58% | +4.15% | Joe Biden | Democrat |
| October 2022 | 554.0 | -0.41% | +5.02% | Joe Biden | Democrat |
| September 2022 | 556.3 | +0.52% | +6% | Joe Biden | Democrat |
| August 2022 | 553.4 | +0.7% | +5.37% | Joe Biden | Democrat |
| July 2022 | 549.6 | +0.52% | +4.83% | Joe Biden | Democrat |
| June 2022 | 546.7 | +0.59% | +4.54% | Joe Biden | Democrat |
| May 2022 | 543.5 | +0.36% | +3.74% | Joe Biden | Democrat |
| April 2022 | 541.5 | +0.33% | +3.23% | Joe Biden | Democrat |
| March 2022 | 539.7 | +0.52% | +2.86% | Joe Biden | Democrat |
| February 2022 | 536.9 | +0.35% | +2.43% | Joe Biden | Democrat |
| January 2022 | 535.1 | +0.95% | +2.47% | Joe Biden | Democrat |
| December 2021 | 530.0 | +0.22% | +2.17% | Joe Biden | Democrat |
| November 2021 | 528.9 | +0.25% | +1.74% | Joe Biden | Democrat |
| October 2021 | 527.6 | +0.52% | +1.31% | Joe Biden | Democrat |
| September 2021 | 524.8 | -0.08% | +0.44% | Joe Biden | Democrat |
| August 2021 | 525.3 | +0.2% | +0.37% | Joe Biden | Democrat |
| July 2021 | 524.2 | +0.24% | +0.29% | Joe Biden | Democrat |
| June 2021 | 523.0 | -0.18% | +0.43% | Joe Biden | Democrat |
| May 2021 | 523.9 | -0.13% | +0.91% | Joe Biden | Democrat |
| April 2021 | 524.6 | -0.03% | +1.46% | Joe Biden | Democrat |
| March 2021 | 524.7 | +0.1% | +1.77% | Joe Biden | Democrat |
| February 2021 | 524.2 | +0.4% | +2% | Joe Biden | Democrat |
| January 2021 | 522.1 | +0.65% | +1.95% | Joe Biden | Democrat |
| December 2020 | 518.8 | -0.21% | +1.78% | Donald Trump (1st Term) | Republican |
| November 2020 | 519.9 | -0.17% | +2.43% | Donald Trump (1st Term) | Republican |
| October 2020 | 520.7 | -0.34% | +2.89% | Donald Trump (1st Term) | Republican |
| September 2020 | 522.5 | -0.15% | +4.2% | Donald Trump (1st Term) | Republican |
| August 2020 | 523.3 | +0.12% | +4.47% | Donald Trump (1st Term) | Republican |
| July 2020 | 522.7 | +0.38% | +5.02% | Donald Trump (1st Term) | Republican |
| June 2020 | 520.7 | +0.3% | +5.08% | Donald Trump (1st Term) | Republican |
| May 2020 | 519.2 | +0.41% | +4.9% | Donald Trump (1st Term) | Republican |
| April 2020 | 517.1 | +0.28% | +4.81% | Donald Trump (1st Term) | Republican |
| March 2020 | 515.6 | +0.33% | +4.73% | Donald Trump (1st Term) | Republican |
| February 2020 | 513.9 | +0.35% | +4.62% | Donald Trump (1st Term) | Republican |
| January 2020 | 512.2 | +0.48% | +4.48% | Donald Trump (1st Term) | Republican |
| December 2019 | 509.7 | +0.42% | +4.57% | Donald Trump (1st Term) | Republican |
| November 2019 | 507.5 | +0.28% | +4.24% | Donald Trump (1st Term) | Republican |
| October 2019 | 506.1 | +0.92% | +4.29% | Donald Trump (1st Term) | Republican |
| September 2019 | 501.5 | +0.11% | +3.46% | Donald Trump (1st Term) | Republican |
| August 2019 | 500.9 | +0.65% | +3.46% | Donald Trump (1st Term) | Republican |
| July 2019 | 497.7 | +0.43% | +2.58% | Donald Trump (1st Term) | Republican |
| June 2019 | 495.6 | +0.13% | +1.96% | Donald Trump (1st Term) | Republican |
| May 2019 | 494.9 | +0.32% | +2.08% | Donald Trump (1st Term) | Republican |
| April 2019 | 493.3 | +0.21% | +1.92% | Donald Trump (1st Term) | Republican |
| March 2019 | 492.3 | +0.22% | +1.72% | Donald Trump (1st Term) | Republican |
| February 2019 | 491.2 | +0.21% | +1.72% | Donald Trump (1st Term) | Republican |
| January 2019 | 490.2 | +0.57% | +1.9% | Donald Trump (1st Term) | Republican |
| December 2018 | 487.4 | +0.11% | +2.01% | Donald Trump (1st Term) | Republican |
| November 2018 | 486.9 | +0.33% | +2.03% | Donald Trump (1st Term) | Republican |
| October 2018 | 485.3 | +0.12% | +1.71% | Donald Trump (1st Term) | Republican |
| September 2018 | 484.7 | +0.11% | +1.73% | Donald Trump (1st Term) | Republican |
| August 2018 | 484.2 | -0.21% | +1.53% | Donald Trump (1st Term) | Republican |
| July 2018 | 485.2 | -0.17% | +1.9% | Donald Trump (1st Term) | Republican |
| June 2018 | 486.0 | +0.24% | +2.46% | Donald Trump (1st Term) | Republican |
| May 2018 | 484.9 | +0.17% | +2.39% | Donald Trump (1st Term) | Republican |
| April 2018 | 484.0 | +0.01% | +2.21% | Donald Trump (1st Term) | Republican |
| March 2018 | 484.0 | +0.22% | +1.98% | Donald Trump (1st Term) | Republican |
| February 2018 | 482.9 | +0.38% | +1.76% | Donald Trump (1st Term) | Republican |
| January 2018 | 481.1 | +0.68% | +1.98% | Donald Trump (1st Term) | Republican |
| December 2017 | 477.8 | +0.13% | +1.78% | Donald Trump (1st Term) | Republican |
| November 2017 | 477.2 | +0.02% | +1.68% | Donald Trump (1st Term) | Republican |
| October 2017 | 477.1 | +0.13% | +1.68% | Donald Trump (1st Term) | Republican |
| September 2017 | 476.5 | -0.08% | +1.56% | Donald Trump (1st Term) | Republican |
| August 2017 | 476.9 | +0.16% | +1.81% | Donald Trump (1st Term) | Republican |
| July 2017 | 476.1 | +0.37% | +2.58% | Donald Trump (1st Term) | Republican |
| June 2017 | 474.4 | +0.18% | +2.66% | Donald Trump (1st Term) | Republican |
| May 2017 | 473.5 | -0.01% | +2.66% | Donald Trump (1st Term) | Republican |
| April 2017 | 473.6 | -0.21% | +2.95% | Donald Trump (1st Term) | Republican |
| March 2017 | 474.6 | 0% | +3.48% | Donald Trump (1st Term) | Republican |
| February 2017 | 474.6 | +0.6% | +3.55% | Donald Trump (1st Term) | Republican |
| January 2017 | 471.7 | +0.48% | +3.86% | Donald Trump (1st Term) | Republican |
| December 2016 | 469.5 | +0.03% | +4.07% | Barack Obama | Democrat |
| November 2016 | 469.3 | +0.02% | +3.98% | Barack Obama | Democrat |
| October 2016 | 469.2 | +0.02% | +4.26% | Barack Obama | Democrat |
| September 2016 | 469.2 | +0.16% | +4.89% | Barack Obama | Democrat |
| August 2016 | 468.4 | +0.91% | +4.89% | Barack Obama | Democrat |
| July 2016 | 464.2 | +0.45% | +3.89% | Barack Obama | Democrat |
| June 2016 | 462.1 | +0.18% | +3.54% | Barack Obama | Democrat |
| May 2016 | 461.2 | +0.27% | +3.13% | Barack Obama | Democrat |
| April 2016 | 460.0 | +0.3% | +2.98% | Barack Obama | Democrat |
| March 2016 | 458.6 | +0.07% | +3.29% | Barack Obama | Democrat |
| February 2016 | 458.3 | +0.91% | +3.51% | Barack Obama | Democrat |
| January 2016 | 454.2 | +0.69% | +3% | Barack Obama | Democrat |
| December 2015 | 451.1 | -0.07% | +2.58% | Barack Obama | Democrat |
| November 2015 | 451.4 | +0.29% | +2.95% | Barack Obama | Democrat |
| October 2015 | 450.1 | +0.62% | +2.98% | Barack Obama | Democrat |
| September 2015 | 447.3 | +0.17% | +2.45% | Barack Obama | Democrat |
| August 2015 | 446.5 | -0.05% | +2.47% | Barack Obama | Democrat |
| July 2015 | 446.8 | +0.11% | +2.49% | Barack Obama | Democrat |
| June 2015 | 446.3 | -0.21% | +2.51% | Barack Obama | Democrat |
| May 2015 | 447.2 | +0.12% | +2.84% | Barack Obama | Democrat |
| April 2015 | 446.7 | +0.59% | +2.91% | Barack Obama | Democrat |
| March 2015 | 444.0 | +0.28% | +2.46% | Barack Obama | Democrat |
| February 2015 | 442.8 | +0.41% | +2.31% | Barack Obama | Democrat |
| January 2015 | 441.0 | +0.28% | +2.64% | Barack Obama | Democrat |
| December 2014 | 439.7 | +0.29% | +2.96% | Barack Obama | Democrat |
| November 2014 | 438.5 | +0.32% | +2.5% | Barack Obama | Democrat |
| October 2014 | 437.0 | +0.1% | +2.09% | Barack Obama | Democrat |
| September 2014 | 436.6 | +0.18% | +2% | Barack Obama | Democrat |
| August 2014 | 435.8 | -0.03% | +2.09% | Barack Obama | Democrat |
| July 2014 | 435.9 | +0.13% | +2.61% | Barack Obama | Democrat |
| June 2014 | 435.4 | +0.11% | +2.61% | Barack Obama | Democrat |
| May 2014 | 434.9 | +0.19% | +2.85% | Barack Obama | Democrat |
| April 2014 | 434.1 | +0.16% | +2.41% | Barack Obama | Democrat |
| March 2014 | 433.4 | +0.14% | +2.17% | Barack Obama | Democrat |
| February 2014 | 432.8 | +0.73% | +2.26% | Barack Obama | Democrat |
| January 2014 | 429.6 | +0.59% | +2.12% | Barack Obama | Democrat |
| December 2013 | 427.1 | -0.15% | +2.02% | Barack Obama | Democrat |
| November 2013 | 427.7 | -0.08% | +2.17% | Barack Obama | Democrat |
| October 2013 | 428.1 | +0.01% | +2.32% | Barack Obama | Democrat |
| September 2013 | 428.0 | +0.27% | +2.39% | Barack Obama | Democrat |
| August 2013 | 426.9 | +0.48% | +2.34% | Barack Obama | Democrat |
| July 2013 | 424.8 | +0.14% | +1.94% | Barack Obama | Democrat |
| June 2013 | 424.3 | +0.34% | +2.15% | Barack Obama | Democrat |
| May 2013 | 422.8 | -0.23% | +2.22% | Barack Obama | Democrat |
| April 2013 | 423.8 | -0.08% | +2.75% | Barack Obama | Democrat |
| March 2013 | 424.2 | +0.22% | +3.07% | Barack Obama | Democrat |
| February 2013 | 423.2 | +0.6% | +3.11% | Barack Obama | Democrat |
| January 2013 | 420.7 | +0.49% | +3.1% | Barack Obama | Democrat |
| December 2012 | 418.7 | 0% | +3.21% | Barack Obama | Democrat |
| November 2012 | 418.7 | +0.07% | +3.41% | Barack Obama | Democrat |
| October 2012 | 418.4 | +0.08% | +3.7% | Barack Obama | Democrat |
| September 2012 | 418.0 | +0.22% | +4.09% | Barack Obama | Democrat |
| August 2012 | 417.1 | +0.09% | +4.05% | Barack Obama | Democrat |
| July 2012 | 416.8 | +0.34% | +4.11% | Barack Obama | Democrat |
| June 2012 | 415.4 | +0.41% | +3.95% | Barack Obama | Democrat |
| May 2012 | 413.7 | +0.29% | +3.58% | Barack Obama | Democrat |
| April 2012 | 412.5 | +0.24% | +3.43% | Barack Obama | Democrat |
| March 2012 | 411.5 | +0.25% | +3.46% | Barack Obama | Democrat |
| February 2012 | 410.5 | +0.59% | +3.37% | Barack Obama | Democrat |
| January 2012 | 408.1 | +0.6% | +3.61% | Barack Obama | Democrat |
| December 2011 | 405.6 | +0.19% | +3.49% | Barack Obama | Democrat |
| November 2011 | 404.9 | +0.35% | +3.37% | Barack Obama | Democrat |
| October 2011 | 403.4 | +0.45% | +3.12% | Barack Obama | Democrat |
| September 2011 | 401.6 | +0.18% | +2.81% | Barack Obama | Democrat |
| August 2011 | 400.9 | +0.14% | +3.19% | Barack Obama | Democrat |
| July 2011 | 400.3 | +0.19% | +3.2% | Barack Obama | Democrat |
| June 2011 | 399.6 | +0.04% | +2.92% | Barack Obama | Democrat |
| May 2011 | 399.4 | +0.14% | +3% | Barack Obama | Democrat |
| April 2011 | 398.8 | +0.27% | +2.87% | Barack Obama | Democrat |
| March 2011 | 397.7 | +0.17% | +2.74% | Barack Obama | Democrat |
| February 2011 | 397.1 | +0.82% | +2.89% | Barack Obama | Democrat |
| January 2011 | 393.9 | +0.49% | +2.92% | Barack Obama | Democrat |
| December 2010 | 392.0 | +0.07% | +3.28% | Barack Obama | Democrat |
| November 2010 | 391.7 | +0.11% | +3.18% | Barack Obama | Democrat |
| October 2010 | 391.2 | +0.16% | +3.35% | Barack Obama | Democrat |
| September 2010 | 390.6 | +0.55% | +3.41% | Barack Obama | Democrat |
| August 2010 | 388.5 | +0.15% | +3.17% | Barack Obama | Democrat |
| July 2010 | 387.9 | -0.08% | +3.24% | Barack Obama | Democrat |
| June 2010 | 388.2 | +0.11% | +3.5% | Barack Obama | Democrat |
| May 2010 | 387.8 | +0.02% | +3.39% | Barack Obama | Democrat |
| April 2010 | 387.7 | +0.14% | +3.62% | Barack Obama | Democrat |
| March 2010 | 387.1 | +0.32% | +3.74% | Barack Obama | Democrat |
| February 2010 | 385.9 | +0.84% | +3.63% | Barack Obama | Democrat |
| January 2010 | 382.7 | +0.84% | +3.48% | Barack Obama | Democrat |
| December 2009 | 379.5 | -0.02% | +3.37% | Barack Obama | Democrat |
| November 2009 | 379.6 | +0.27% | +3.54% | Barack Obama | Democrat |
| October 2009 | 378.6 | +0.22% | +3.5% | Barack Obama | Democrat |
| September 2009 | 377.7 | +0.32% | +3.48% | Barack Obama | Democrat |
| August 2009 | 376.5 | +0.21% | +3.31% | Barack Obama | Democrat |
| July 2009 | 375.7 | +0.17% | +3.24% | Barack Obama | Democrat |
| June 2009 | 375.1 | +0.02% | +3.15% | Barack Obama | Democrat |
| May 2009 | 375.0 | +0.23% | +3.2% | Barack Obama | Democrat |
| April 2009 | 374.2 | +0.26% | +3.03% | Barack Obama | Democrat |
| March 2009 | 373.2 | +0.21% | +2.81% | Barack Obama | Democrat |
| February 2009 | 372.4 | +0.7% | +2.83% | Barack Obama | Democrat |
| January 2009 | 369.8 | +0.74% | +2.6% | Barack Obama | Democrat |
| December 2008 | 367.1 | +0.14% | +2.65% | George W. Bush | Republican |
| November 2008 | 366.6 | +0.24% | +2.68% | George W. Bush | Republican |
| October 2008 | 365.8 | +0.19% | +2.84% | George W. Bush | Republican |
| September 2008 | 365.0 | +0.15% | +3.2% | George W. Bush | Republican |
| August 2008 | 364.5 | +0.14% | +3.26% | George W. Bush | Republican |
| July 2008 | 364.0 | +0.09% | +3.5% | George W. Bush | Republican |
| June 2008 | 363.6 | +0.06% | +4.04% | George W. Bush | Republican |
| May 2008 | 363.4 | +0.06% | +4.1% | George W. Bush | Republican |
| April 2008 | 363.2 | +0.05% | +4.29% | George W. Bush | Republican |
| March 2008 | 363.0 | +0.23% | +4.56% | George W. Bush | Republican |
| February 2008 | 362.2 | +0.47% | +4.53% | George W. Bush | Republican |
| January 2008 | 360.5 | +0.78% | +4.93% | George W. Bush | Republican |
| December 2007 | 357.7 | +0.17% | +5.16% | George W. Bush | Republican |
| November 2007 | 357.0 | +0.39% | +4.98% | George W. Bush | Republican |
| October 2007 | 355.7 | +0.55% | +4.82% | George W. Bush | Republican |
| September 2007 | 353.7 | +0.22% | +4.56% | George W. Bush | Republican |
| August 2007 | 353.0 | +0.38% | +4.52% | George W. Bush | Republican |
| July 2007 | 351.6 | +0.61% | +4.34% | George W. Bush | Republican |
| June 2007 | 349.5 | +0.12% | +4.02% | George W. Bush | Republican |
| May 2007 | 349.1 | +0.25% | +4.02% | George W. Bush | Republican |
| April 2007 | 348.2 | +0.31% | +4.04% | George W. Bush | Republican |
| March 2007 | 347.2 | +0.2% | +4.01% | George W. Bush | Republican |
| February 2007 | 346.5 | +0.86% | +4.32% | George W. Bush | Republican |
| January 2007 | 343.5 | +1% | +4.25% | George W. Bush | Republican |
| December 2006 | 340.1 | 0% | +3.56% | George W. Bush | Republican |
| November 2006 | 340.1 | +0.24% | +3.66% | George W. Bush | Republican |
| October 2006 | 339.3 | +0.3% | +4.02% | George W. Bush | Republican |
| September 2006 | 338.3 | +0.18% | +4.22% | George W. Bush | Republican |
| August 2006 | 337.7 | +0.21% | +4.26% | George W. Bush | Republican |
| July 2006 | 337.0 | +0.3% | +3.98% | George W. Bush | Republican |
| June 2006 | 336.0 | +0.12% | +4.06% | George W. Bush | Republican |
| May 2006 | 335.6 | +0.27% | +4.16% | George W. Bush | Republican |
| April 2006 | 334.7 | +0.27% | +4.11% | George W. Bush | Republican |
| March 2006 | 333.8 | +0.51% | +4.08% | George W. Bush | Republican |
| February 2006 | 332.1 | +0.79% | +4.01% | George W. Bush | Republican |
| January 2006 | 329.5 | +0.33% | +4.01% | George W. Bush | Republican |
| December 2005 | 328.4 | +0.09% | +4.29% | George W. Bush | Republican |
| November 2005 | 328.1 | +0.58% | +4.46% | George W. Bush | Republican |
| October 2005 | 326.2 | +0.49% | +4.12% | George W. Bush | Republican |
| September 2005 | 324.6 | +0.22% | +3.94% | George W. Bush | Republican |
| August 2005 | 323.9 | -0.06% | +3.95% | George W. Bush | Republican |
| July 2005 | 324.1 | +0.37% | +4.21% | George W. Bush | Republican |
| June 2005 | 322.9 | +0.22% | +4.16% | George W. Bush | Republican |
| May 2005 | 322.2 | +0.22% | +4.27% | George W. Bush | Republican |
| April 2005 | 321.5 | +0.25% | +4.28% | George W. Bush | Republican |
| March 2005 | 320.7 | +0.44% | +4.29% | George W. Bush | Republican |
| February 2005 | 319.3 | +0.79% | +4.35% | George W. Bush | Republican |
| January 2005 | 316.8 | +0.6% | +4.35% | George W. Bush | Republican |
| December 2004 | 314.9 | +0.25% | +4.24% | George W. Bush | Republican |
| November 2004 | 314.1 | +0.26% | +4.42% | George W. Bush | Republican |
| October 2004 | 313.3 | +0.32% | +4.47% | George W. Bush | Republican |
| September 2004 | 312.3 | +0.22% | +4.38% | George W. Bush | Republican |
| August 2004 | 311.6 | +0.19% | +4.42% | George W. Bush | Republican |
| July 2004 | 311.0 | +0.32% | +4.5% | George W. Bush | Republican |
| June 2004 | 310.0 | +0.32% | +4.62% | George W. Bush | Republican |
| May 2004 | 309.0 | +0.23% | +4.57% | George W. Bush | Republican |
| April 2004 | 308.3 | +0.26% | +4.65% | George W. Bush | Republican |
| March 2004 | 307.5 | +0.49% | +4.52% | George W. Bush | Republican |
| February 2004 | 306.0 | +0.79% | +4.19% | George W. Bush | Republican |
| January 2004 | 303.6 | +0.5% | +3.76% | George W. Bush | Republican |
| December 2003 | 302.1 | +0.43% | +3.71% | George W. Bush | Republican |
| November 2003 | 300.8 | +0.3% | +3.55% | George W. Bush | Republican |
| October 2003 | 299.9 | +0.23% | +3.7% | George W. Bush | Republican |
| September 2003 | 299.2 | +0.27% | +4% | George W. Bush | Republican |
| August 2003 | 298.4 | +0.27% | +3.86% | George W. Bush | Republican |
| July 2003 | 297.6 | +0.44% | +3.84% | George W. Bush | Republican |
| June 2003 | 296.3 | +0.27% | +4.07% | George W. Bush | Republican |
| May 2003 | 295.5 | +0.31% | +4.01% | George W. Bush | Republican |
| April 2003 | 294.6 | +0.14% | +4.03% | George W. Bush | Republican |
| March 2003 | 294.2 | +0.17% | +4.33% | George W. Bush | Republican |
| February 2003 | 293.7 | +0.38% | +4.52% | George W. Bush | Republican |
| January 2003 | 292.6 | +0.45% | +4.65% | George W. Bush | Republican |
| December 2002 | 291.3 | +0.28% | +5.05% | George W. Bush | Republican |
| November 2002 | 290.5 | +0.45% | +4.99% | George W. Bush | Republican |
| October 2002 | 289.2 | +0.52% | +4.82% | George W. Bush | Republican |
| September 2002 | 287.7 | +0.14% | +4.62% | George W. Bush | Republican |
| August 2002 | 287.3 | +0.24% | +4.7% | George W. Bush | Republican |
| July 2002 | 286.6 | +0.67% | +4.94% | George W. Bush | Republican |
| June 2002 | 284.7 | +0.21% | +4.48% | George W. Bush | Republican |
| May 2002 | 284.1 | +0.32% | +4.68% | George W. Bush | Republican |
| April 2002 | 283.2 | +0.43% | +4.58% | George W. Bush | Republican |
| March 2002 | 282.0 | +0.36% | +4.44% | George W. Bush | Republican |
| February 2002 | 281.0 | +0.5% | +4.5% | George W. Bush | Republican |
| January 2002 | 279.6 | +0.83% | +4.68% | George W. Bush | Republican |
| December 2001 | 277.3 | +0.22% | +4.72% | George W. Bush | Republican |
| November 2001 | 276.7 | +0.29% | +4.77% | George W. Bush | Republican |
| October 2001 | 275.9 | +0.33% | +4.63% | George W. Bush | Republican |
| September 2001 | 275.0 | +0.22% | +4.52% | George W. Bush | Republican |
| August 2001 | 274.4 | +0.48% | +4.49% | George W. Bush | Republican |
| July 2001 | 273.1 | +0.22% | +4.48% | George W. Bush | Republican |
| June 2001 | 272.5 | +0.41% | +4.61% | George W. Bush | Republican |
| May 2001 | 271.4 | +0.22% | +4.63% | George W. Bush | Republican |
| April 2001 | 270.8 | +0.3% | +4.64% | George W. Bush | Republican |
| March 2001 | 270.0 | +0.41% | +4.61% | George W. Bush | Republican |
| February 2001 | 268.9 | +0.67% | +4.63% | George W. Bush | Republican |
| January 2001 | 267.1 | +0.87% | +4.54% | George W. Bush | Republican |
| December 2000 | 264.8 | +0.27% | +4.17% | Bill Clinton | Democrat |
| November 2000 | 264.1 | +0.15% | +4.26% | Bill Clinton | Democrat |
| October 2000 | 263.7 | +0.23% | +4.31% | Bill Clinton | Democrat |
| September 2000 | 263.1 | +0.19% | +4.28% | Bill Clinton | Democrat |
| August 2000 | 262.6 | +0.46% | +4.25% | Bill Clinton | Democrat |
| July 2000 | 261.4 | +0.35% | +4.1% | Bill Clinton | Democrat |
| June 2000 | 260.5 | +0.42% | +4.12% | Bill Clinton | Democrat |
| May 2000 | 259.4 | +0.23% | +3.97% | Bill Clinton | Democrat |
| April 2000 | 258.8 | +0.27% | +3.89% | Bill Clinton | Democrat |
| March 2000 | 258.1 | +0.43% | +3.95% | Bill Clinton | Democrat |
| February 2000 | 257.0 | +0.59% | +3.75% | Bill Clinton | Democrat |
| January 2000 | 255.5 | +0.51% | +3.61% | Bill Clinton | Democrat |
| December 1999 | 254.2 | +0.36% | +3.67% | Bill Clinton | Democrat |
| November 1999 | 253.3 | +0.2% | +3.51% | Bill Clinton | Democrat |
| October 1999 | 252.8 | +0.2% | +3.48% | Bill Clinton | Democrat |
| September 1999 | 252.3 | +0.16% | +3.44% | Bill Clinton | Democrat |
| August 1999 | 251.9 | +0.32% | +3.45% | Bill Clinton | Democrat |
| July 1999 | 251.1 | +0.36% | +3.46% | Bill Clinton | Democrat |
| June 1999 | 250.2 | +0.28% | +3.39% | Bill Clinton | Democrat |
| May 1999 | 249.5 | +0.16% | +3.36% | Bill Clinton | Democrat |
| April 1999 | 249.1 | +0.32% | +3.49% | Bill Clinton | Democrat |
| March 1999 | 248.3 | +0.24% | +3.54% | Bill Clinton | Democrat |
| February 1999 | 247.7 | +0.45% | +3.51% | Bill Clinton | Democrat |
| January 1999 | 246.6 | +0.57% | +3.57% | Bill Clinton | Democrat |
| December 1998 | 245.2 | +0.2% | +3.42% | Bill Clinton | Democrat |
| November 1998 | 244.7 | +0.16% | +3.51% | Bill Clinton | Democrat |
| October 1998 | 244.3 | +0.16% | +3.6% | Bill Clinton | Democrat |
| September 1998 | 243.9 | +0.16% | +3.61% | Bill Clinton | Democrat |
| August 1998 | 243.5 | +0.33% | +3.53% | Bill Clinton | Democrat |
| July 1998 | 242.7 | +0.29% | +3.36% | Bill Clinton | Democrat |
| June 1998 | 242.0 | +0.25% | +3.24% | Bill Clinton | Democrat |
| May 1998 | 241.4 | +0.29% | +3.07% | Bill Clinton | Democrat |
| April 1998 | 240.7 | +0.38% | +2.95% | Bill Clinton | Democrat |
| March 1998 | 239.8 | +0.21% | +2.74% | Bill Clinton | Democrat |
| February 1998 | 239.3 | +0.5% | +2.84% | Bill Clinton | Democrat |
| January 1998 | 238.1 | +0.42% | +2.72% | Bill Clinton | Democrat |
| December 1997 | 237.1 | +0.3% | +2.82% | Bill Clinton | Democrat |
| November 1997 | 236.4 | +0.25% | +2.56% | Bill Clinton | Democrat |
| October 1997 | 235.8 | +0.17% | +2.48% | Bill Clinton | Democrat |
| September 1997 | 235.4 | +0.09% | +2.62% | Bill Clinton | Democrat |
| August 1997 | 235.2 | +0.17% | +2.62% | Bill Clinton | Democrat |
| July 1997 | 234.8 | +0.17% | +2.67% | Bill Clinton | Democrat |
| June 1997 | 234.4 | +0.09% | +2.9% | Bill Clinton | Democrat |
| May 1997 | 234.2 | +0.17% | +2.99% | Bill Clinton | Democrat |
| April 1997 | 233.8 | +0.17% | +3% | Bill Clinton | Democrat |
| March 1997 | 233.4 | +0.3% | +3% | Bill Clinton | Democrat |
| February 1997 | 232.7 | +0.39% | +2.87% | Bill Clinton | Democrat |
| January 1997 | 231.8 | +0.52% | +2.93% | Bill Clinton | Democrat |
| December 1996 | 230.6 | +0.04% | +3.04% | Bill Clinton | Democrat |
| November 1996 | 230.5 | +0.17% | +3.13% | Bill Clinton | Democrat |
| October 1996 | 230.1 | +0.31% | +3.23% | Bill Clinton | Democrat |
| September 1996 | 229.4 | +0.09% | +3.29% | Bill Clinton | Democrat |
| August 1996 | 229.2 | +0.22% | +3.43% | Bill Clinton | Democrat |
| July 1996 | 228.7 | +0.4% | +3.58% | Bill Clinton | Democrat |
| June 1996 | 227.8 | +0.18% | +3.64% | Bill Clinton | Democrat |
| May 1996 | 227.4 | +0.18% | +3.69% | Bill Clinton | Democrat |
| April 1996 | 227.0 | +0.18% | +3.7% | Bill Clinton | Democrat |
| March 1996 | 226.6 | +0.18% | +3.75% | Bill Clinton | Democrat |
| February 1996 | 226.2 | +0.44% | +3.81% | Bill Clinton | Democrat |
| January 1996 | 225.2 | +0.63% | +3.97% | Bill Clinton | Democrat |
| December 1995 | 223.8 | +0.13% | +3.95% | Bill Clinton | Democrat |
| November 1995 | 223.5 | +0.27% | +4.1% | Bill Clinton | Democrat |
| October 1995 | 222.9 | +0.36% | +4.16% | Bill Clinton | Democrat |
| September 1995 | 222.1 | +0.23% | +4.37% | Bill Clinton | Democrat |
| August 1995 | 221.6 | +0.36% | +4.43% | Bill Clinton | Democrat |
| July 1995 | 220.8 | +0.45% | +4.4% | Bill Clinton | Democrat |
| June 1995 | 219.8 | +0.23% | +4.47% | Bill Clinton | Democrat |
| May 1995 | 219.3 | +0.18% | +4.58% | Bill Clinton | Democrat |
| April 1995 | 218.9 | +0.23% | +4.64% | Bill Clinton | Democrat |
| March 1995 | 218.4 | +0.23% | +4.85% | Bill Clinton | Democrat |
| February 1995 | 217.9 | +0.6% | +4.91% | Bill Clinton | Democrat |
| January 1995 | 216.6 | +0.6% | +4.94% | Bill Clinton | Democrat |
| December 1994 | 215.3 | +0.28% | +4.92% | Bill Clinton | Democrat |
| November 1994 | 214.7 | +0.33% | +4.78% | Bill Clinton | Democrat |
| October 1994 | 214.0 | +0.56% | +4.7% | Bill Clinton | Democrat |
| September 1994 | 212.8 | +0.28% | +4.67% | Bill Clinton | Democrat |
| August 1994 | 212.2 | +0.33% | +4.58% | Bill Clinton | Democrat |
| July 1994 | 211.5 | +0.52% | +4.6% | Bill Clinton | Democrat |
| June 1994 | 210.4 | +0.33% | +4.62% | Bill Clinton | Democrat |
| May 1994 | 209.7 | +0.24% | +4.59% | Bill Clinton | Democrat |
| April 1994 | 209.2 | +0.43% | +4.91% | Bill Clinton | Democrat |
| March 1994 | 208.3 | +0.29% | +4.88% | Bill Clinton | Democrat |
| February 1994 | 207.7 | +0.63% | +4.9% | Bill Clinton | Democrat |
| January 1994 | 206.4 | +0.58% | +5.09% | Bill Clinton | Democrat |
| December 1993 | 205.2 | +0.15% | +5.39% | Bill Clinton | Democrat |
| November 1993 | 204.9 | +0.24% | +5.46% | Bill Clinton | Democrat |
| October 1993 | 204.4 | +0.54% | +5.74% | Bill Clinton | Democrat |
| September 1993 | 203.3 | +0.2% | +5.72% | Bill Clinton | Democrat |
| August 1993 | 202.9 | +0.35% | +5.95% | Bill Clinton | Democrat |
| July 1993 | 202.2 | +0.55% | +6.03% | Bill Clinton | Democrat |
| June 1993 | 201.1 | +0.3% | +6.18% | Bill Clinton | Democrat |
| May 1993 | 200.5 | +0.55% | +6.25% | Bill Clinton | Democrat |
| April 1993 | 199.4 | +0.4% | +6.01% | Bill Clinton | Democrat |
| March 1993 | 198.6 | +0.3% | +6.03% | Bill Clinton | Democrat |
| February 1993 | 198.0 | +0.81% | +6.34% | Bill Clinton | Democrat |
| January 1993 | 196.4 | +0.87% | +6.57% | Bill Clinton | Democrat |
| December 1992 | 194.7 | +0.21% | +6.63% | George H. W. Bush | Republican |
| November 1992 | 194.3 | +0.52% | +6.88% | George H. W. Bush | Republican |
| October 1992 | 193.3 | +0.52% | +6.97% | George H. W. Bush | Republican |
| September 1992 | 192.3 | +0.42% | +7.01% | George H. W. Bush | Republican |
| August 1992 | 191.5 | +0.42% | +7.04% | George H. W. Bush | Republican |
| July 1992 | 190.7 | +0.69% | +7.44% | George H. W. Bush | Republican |
| June 1992 | 189.4 | +0.37% | +7.49% | George H. W. Bush | Republican |
| May 1992 | 188.7 | +0.32% | +7.71% | George H. W. Bush | Republican |
| April 1992 | 188.1 | +0.43% | +7.86% | George H. W. Bush | Republican |
| March 1992 | 187.3 | +0.59% | +7.83% | George H. W. Bush | Republican |
| February 1992 | 186.2 | +1.03% | +7.94% | George H. W. Bush | Republican |
| January 1992 | 184.3 | +0.93% | +7.78% | George H. W. Bush | Republican |
| December 1991 | 182.6 | +0.44% | +7.92% | George H. W. Bush | Republican |
| November 1991 | 181.8 | +0.61% | +7.96% | George H. W. Bush | Republican |
| October 1991 | 180.7 | +0.56% | +8.14% | George H. W. Bush | Republican |
| September 1991 | 179.7 | +0.45% | +8.38% | George H. W. Bush | Republican |
| August 1991 | 178.9 | +0.79% | +8.42% | George H. W. Bush | Republican |
| July 1991 | 177.5 | +0.74% | +8.56% | George H. W. Bush | Republican |
| June 1991 | 176.2 | +0.57% | +8.83% | George H. W. Bush | Republican |
| May 1991 | 175.2 | +0.46% | +8.96% | George H. W. Bush | Republican |
| April 1991 | 174.4 | +0.4% | +9.14% | George H. W. Bush | Republican |
| March 1991 | 173.7 | +0.7% | +9.45% | George H. W. Bush | Republican |
| February 1991 | 172.5 | +0.88% | +9.52% | George H. W. Bush | Republican |
| January 1991 | 171.0 | +1.06% | +9.69% | George H. W. Bush | Republican |
| December 1990 | 169.2 | +0.48% | +9.59% | George H. W. Bush | Republican |
| November 1990 | 168.4 | +0.78% | +9.42% | George H. W. Bush | Republican |
| October 1990 | 167.1 | +0.78% | +9.43% | George H. W. Bush | Republican |
| September 1990 | 165.8 | +0.48% | +9.29% | George H. W. Bush | Republican |
| August 1990 | 165.0 | +0.92% | +9.49% | George H. W. Bush | Republican |
| July 1990 | 163.5 | +0.99% | +9.22% | George H. W. Bush | Republican |
| June 1990 | 161.9 | +0.68% | +9.02% | George H. W. Bush | Republican |
| May 1990 | 160.8 | +0.63% | +9.02% | George H. W. Bush | Republican |
| April 1990 | 159.8 | +0.69% | +8.86% | George H. W. Bush | Republican |
| March 1990 | 158.7 | +0.76% | +8.62% | George H. W. Bush | Republican |
| February 1990 | 157.5 | +1.03% | +8.47% | George H. W. Bush | Republican |
| January 1990 | 155.9 | +0.97% | +8.41% | George H. W. Bush | Republican |
| December 1989 | 154.4 | +0.32% | +8.5% | George H. W. Bush | Republican |
| November 1989 | 153.9 | +0.79% | +8.53% | George H. W. Bush | Republican |
| October 1989 | 152.7 | +0.66% | +8.14% | George H. W. Bush | Republican |
| September 1989 | 151.7 | +0.66% | +8.05% | George H. W. Bush | Republican |
| August 1989 | 150.7 | +0.67% | +7.72% | George H. W. Bush | Republican |
| July 1989 | 149.7 | +0.81% | +7.47% | George H. W. Bush | Republican |
| June 1989 | 148.5 | +0.68% | +7.45% | George H. W. Bush | Republican |
| May 1989 | 147.5 | +0.48% | +7.27% | George H. W. Bush | Republican |
| April 1989 | 146.8 | +0.48% | +7.23% | George H. W. Bush | Republican |
| March 1989 | 146.1 | +0.62% | +7.19% | George H. W. Bush | Republican |
| February 1989 | 145.2 | +0.97% | +7.16% | George H. W. Bush | Republican |
| January 1989 | 143.8 | +1.05% | +6.99% | George H. W. Bush | Republican |
| December 1988 | 142.3 | +0.35% | +6.91% | Ronald Reagan | Republican |
| November 1988 | 141.8 | +0.42% | +6.78% | Ronald Reagan | Republican |
| October 1988 | 141.2 | +0.57% | +6.73% | Ronald Reagan | Republican |
| September 1988 | 140.4 | +0.36% | +6.61% | Ronald Reagan | Republican |
| August 1988 | 139.9 | +0.43% | +6.63% | Ronald Reagan | Republican |
| July 1988 | 139.3 | +0.8% | +6.58% | Ronald Reagan | Republican |
| June 1988 | 138.2 | +0.51% | +6.39% | Ronald Reagan | Republican |
| May 1988 | 137.5 | +0.44% | +6.42% | Ronald Reagan | Republican |
| April 1988 | 136.9 | +0.44% | +6.37% | Ronald Reagan | Republican |
| March 1988 | 136.3 | +0.59% | +6.4% | Ronald Reagan | Republican |
| February 1988 | 135.5 | +0.82% | +6.36% | Ronald Reagan | Republican |
| January 1988 | 134.4 | +0.98% | +6.16% | Ronald Reagan | Republican |
| December 1987 | 133.1 | +0.23% | +5.8% | Ronald Reagan | Republican |
| November 1987 | 132.8 | +0.38% | +6.07% | Ronald Reagan | Republican |
| October 1987 | 132.3 | +0.46% | +6.27% | Ronald Reagan | Republican |
| September 1987 | 131.7 | +0.38% | +6.38% | Ronald Reagan | Republican |
| August 1987 | 131.2 | +0.38% | +6.49% | Ronald Reagan | Republican |
| July 1987 | 130.7 | +0.62% | +6.78% | Ronald Reagan | Republican |
| June 1987 | 129.9 | +0.54% | +6.83% | Ronald Reagan | Republican |
| May 1987 | 129.2 | +0.39% | +6.78% | Ronald Reagan | Republican |
| April 1987 | 128.7 | +0.47% | +6.8% | Ronald Reagan | Republican |
| March 1987 | 128.1 | +0.55% | +6.84% | Ronald Reagan | Republican |
| February 1987 | 127.4 | +0.63% | +7.15% | Ronald Reagan | Republican |
| January 1987 | 126.6 | +0.64% | +7.56% | Ronald Reagan | Republican |
| December 1986 | 125.8 | +0.48% | +7.71% | Ronald Reagan | Republican |
| November 1986 | 125.2 | +0.56% | +7.65% | Ronald Reagan | Republican |
| October 1986 | 124.5 | +0.57% | +7.7% | Ronald Reagan | Republican |
| September 1986 | 123.8 | +0.49% | +7.65% | Ronald Reagan | Republican |
| August 1986 | 123.2 | +0.65% | +7.6% | Ronald Reagan | Republican |
| July 1986 | 122.4 | +0.66% | +7.65% | Ronald Reagan | Republican |
| June 1986 | 121.6 | +0.5% | +7.52% | Ronald Reagan | Republican |
| May 1986 | 121.0 | +0.41% | +7.56% | Ronald Reagan | Republican |
| April 1986 | 120.5 | +0.5% | +7.49% | Ronald Reagan | Republican |
| March 1986 | 119.9 | +0.84% | +7.44% | Ronald Reagan | Republican |
| February 1986 | 118.9 | +1.02% | +7.21% | Ronald Reagan | Republican |
| January 1986 | 117.7 | +0.77% | +6.9% | Ronald Reagan | Republican |
| December 1985 | 116.8 | +0.43% | +6.76% | Ronald Reagan | Republican |
| November 1985 | 116.3 | +0.61% | +6.6% | Ronald Reagan | Republican |
| October 1985 | 115.6 | +0.52% | +6.54% | Ronald Reagan | Republican |
| September 1985 | 115.0 | +0.44% | +6.58% | Ronald Reagan | Republican |
| August 1985 | 114.5 | +0.7% | +6.51% | Ronald Reagan | Republican |
| July 1985 | 113.7 | +0.53% | +6.16% | Ronald Reagan | Republican |
| June 1985 | 113.1 | +0.53% | +6.3% | Ronald Reagan | Republican |
| May 1985 | 112.5 | +0.36% | +6.03% | Ronald Reagan | Republican |
| April 1985 | 112.1 | +0.45% | +5.95% | Ronald Reagan | Republican |
| March 1985 | 111.6 | +0.63% | +5.88% | Ronald Reagan | Republican |
| February 1985 | 110.9 | +0.73% | +5.52% | Ronald Reagan | Republican |
| January 1985 | 110.1 | +0.64% | +5.87% | Ronald Reagan | Republican |
| December 1984 | 109.4 | +0.27% | +6.11% | Ronald Reagan | Republican |
| November 1984 | 109.1 | +0.55% | +6.23% | Ronald Reagan | Republican |
| October 1984 | 108.5 | +0.56% | +6.16% | Ronald Reagan | Republican |
| September 1984 | 107.9 | +0.37% | +6.1% | Ronald Reagan | Republican |
| August 1984 | 107.5 | +0.37% | +6.02% | Ronald Reagan | Republican |
| July 1984 | 107.1 | +0.66% | +6.36% | Ronald Reagan | Republican |
| June 1984 | 106.4 | +0.28% | +6.29% | Ronald Reagan | Republican |
| May 1984 | 106.1 | +0.28% | +6.42% | Ronald Reagan | Republican |
| April 1984 | 105.8 | +0.38% | +6.33% | Ronald Reagan | Republican |
| March 1984 | 105.4 | +0.29% | +6.25% | Ronald Reagan | Republican |
| February 1984 | 105.1 | +1.06% | +6.27% | Ronald Reagan | Republican |
| January 1984 | 104.0 | +0.87% | +6.23% | Ronald Reagan | Republican |
| December 1983 | 103.1 | +0.39% | +6.4% | Ronald Reagan | Republican |
| November 1983 | 102.7 | +0.49% | +6.65% | Ronald Reagan | Republican |
| October 1983 | 102.2 | +0.49% | +7.13% | Ronald Reagan | Republican |
| September 1983 | 101.7 | +0.3% | +7.51% | Ronald Reagan | Republican |
| August 1983 | 101.4 | +0.7% | +8.1% | Ronald Reagan | Republican |
| July 1983 | 100.7 | +0.6% | +8.4% | Ronald Reagan | Republican |
| June 1983 | 100.1 | +0.4% | +8.92% | Ronald Reagan | Republican |
| May 1983 | 99.7 | +0.2% | +9.32% | Ronald Reagan | Republican |
| April 1983 | 99.5 | +0.3% | +9.82% | Ronald Reagan | Republican |
| March 1983 | 99.2 | +0.3% | +10.47% | Ronald Reagan | Republican |
| February 1983 | 98.9 | +1.02% | +11.12% | Ronald Reagan | Republican |
| January 1983 | 97.9 | +1.03% | +11% | Ronald Reagan | Republican |
| December 1982 | 96.9 | +0.62% | +11% | Ronald Reagan | Republican |
| November 1982 | 96.3 | +0.94% | +10.94% | Ronald Reagan | Republican |
| October 1982 | 95.4 | +0.85% | +11.19% | Ronald Reagan | Republican |
| September 1982 | 94.6 | +0.85% | +11.43% | Ronald Reagan | Republican |
| August 1982 | 93.8 | +0.97% | +11.27% | Ronald Reagan | Republican |
| July 1982 | 92.9 | +1.09% | +11.66% | Ronald Reagan | Republican |
| June 1982 | 91.9 | +0.77% | +11.94% | Ronald Reagan | Republican |
| May 1982 | 91.2 | +0.66% | +12.04% | Ronald Reagan | Republican |
| April 1982 | 90.6 | +0.89% | +12.13% | Ronald Reagan | Republican |
| March 1982 | 89.8 | +0.9% | +11.97% | Ronald Reagan | Republican |
| February 1982 | 89.0 | +0.91% | +11.81% | Ronald Reagan | Republican |
| January 1982 | 88.2 | +1.03% | +12.07% | Ronald Reagan | Republican |
| December 1981 | 87.3 | +0.58% | +12.5% | Ronald Reagan | Republican |
| November 1981 | 86.8 | +1.17% | +12.29% | Ronald Reagan | Republican |
| October 1981 | 85.8 | +1.06% | +11.72% | Ronald Reagan | Republican |
| September 1981 | 84.9 | +0.71% | +11.42% | Ronald Reagan | Republican |
| August 1981 | 84.3 | +1.32% | +11.51% | Ronald Reagan | Republican |
| July 1981 | 83.2 | +1.34% | +10.79% | Ronald Reagan | Republican |
| June 1981 | 82.1 | +0.86% | +10.2% | Ronald Reagan | Republican |
| May 1981 | 81.4 | +0.74% | +9.7% | Ronald Reagan | Republican |
| April 1981 | 80.8 | +0.75% | +9.49% | Ronald Reagan | Republican |
| March 1981 | 80.2 | +0.75% | +9.41% | Ronald Reagan | Republican |
| February 1981 | 79.6 | +1.14% | +9.64% | Ronald Reagan | Republican |
| January 1981 | 78.7 | +1.42% | +10.07% | Ronald Reagan | Republican |
| December 1980 | 77.6 | +0.39% | +9.92% | Jimmy Carter | Democrat |
| November 1980 | 77.3 | +0.65% | +10.74% | Jimmy Carter | Democrat |
| October 1980 | 76.8 | +0.79% | +10.98% | Jimmy Carter | Democrat |
| September 1980 | 76.2 | +0.79% | +11.08% | Jimmy Carter | Democrat |
| August 1980 | 75.6 | +0.67% | +11.01% | Jimmy Carter | Democrat |
| July 1980 | 75.1 | +0.81% | +11.26% | Jimmy Carter | Democrat |
| June 1980 | 74.5 | +0.4% | +11.36% | Jimmy Carter | Democrat |
| May 1980 | 74.2 | +0.54% | +11.58% | Jimmy Carter | Democrat |
| April 1980 | 73.8 | +0.68% | +11.48% | Jimmy Carter | Democrat |
| March 1980 | 73.3 | +0.96% | +11.23% | Jimmy Carter | Democrat |
| February 1980 | 72.6 | +1.54% | +10.84% | Jimmy Carter | Democrat |
| January 1980 | 71.5 | +1.27% | +10% | Jimmy Carter | Democrat |
| December 1979 | 70.6 | +1.15% | +10.14% | Jimmy Carter | Democrat |
| November 1979 | 69.8 | +0.87% | +9.23% | Jimmy Carter | Democrat |
| October 1979 | 69.2 | +0.87% | +9.32% | Jimmy Carter | Democrat |
| September 1979 | 68.6 | +0.73% | +9.41% | Jimmy Carter | Democrat |
| August 1979 | 68.1 | +0.89% | +9.31% | Jimmy Carter | Democrat |
| July 1979 | 67.5 | +0.9% | +9.22% | Jimmy Carter | Democrat |
| June 1979 | 66.9 | +0.6% | +9.14% | Jimmy Carter | Democrat |
| May 1979 | 66.5 | +0.45% | +8.84% | Jimmy Carter | Democrat |
| April 1979 | 66.2 | +0.46% | +9.06% | Jimmy Carter | Democrat |
| March 1979 | 65.9 | +0.61% | +9.11% | Jimmy Carter | Democrat |
| February 1979 | 65.5 | +0.77% | +8.99% | Jimmy Carter | Democrat |
| January 1979 | 65.0 | +1.4% | +9.24% | Jimmy Carter | Democrat |
| December 1978 | 64.1 | +0.31% | +8.83% | Jimmy Carter | Democrat |
| November 1978 | 63.9 | +0.95% | +9.04% | Jimmy Carter | Democrat |
| October 1978 | 63.3 | +0.96% | +8.58% | Jimmy Carter | Democrat |
| September 1978 | 62.7 | +0.64% | +7.92% | Jimmy Carter | Democrat |
| August 1978 | 62.3 | +0.81% | +7.97% | Jimmy Carter | Democrat |
| July 1978 | 61.8 | +0.82% | +7.85% | Jimmy Carter | Democrat |
| June 1978 | 61.3 | +0.33% | +7.92% | Jimmy Carter | Democrat |
| May 1978 | 61.1 | +0.66% | +8.33% | Jimmy Carter | Democrat |
| April 1978 | 60.7 | +0.5% | +8.2% | Jimmy Carter | Democrat |
| March 1978 | 60.4 | +0.5% | +8.63% | Jimmy Carter | Democrat |
| February 1978 | 60.1 | +1.01% | +9.07% | Jimmy Carter | Democrat |
| January 1978 | 59.5 | +1.02% | +8.97% | Jimmy Carter | Democrat |
| December 1977 | 58.9 | +0.51% | +8.87% | Jimmy Carter | Democrat |
| November 1977 | 58.6 | +0.51% | +8.72% | Jimmy Carter | Democrat |
| October 1977 | 58.3 | +0.34% | +9.59% | Jimmy Carter | Democrat |
| September 1977 | 58.1 | +0.69% | +9.83% | Jimmy Carter | Democrat |
| August 1977 | 57.7 | +0.7% | +9.7% | Jimmy Carter | Democrat |
| July 1977 | 57.3 | +0.88% | +9.77% | Jimmy Carter | Democrat |
| June 1977 | 56.8 | +0.71% | +9.86% | Jimmy Carter | Democrat |
| May 1977 | 56.4 | +0.53% | +9.73% | Jimmy Carter | Democrat |
| April 1977 | 56.1 | +0.9% | +9.78% | Jimmy Carter | Democrat |
| March 1977 | 55.6 | +0.91% | +9.45% | Jimmy Carter | Democrat |
| February 1977 | 55.1 | +0.92% | +9.54% | Jimmy Carter | Democrat |
| January 1977 | 54.6 | +0.92% | +9.86% | Gerald Ford | Republican |
| December 1976 | 54.1 | +0.37% | +9.96% | Gerald Ford | Republican |
| November 1976 | 53.9 | +1.32% | +10.45% | Gerald Ford | Republican |
| October 1976 | 53.2 | +0.57% | +9.02% | Gerald Ford | Republican |
| September 1976 | 52.9 | +0.57% | +9.07% | Gerald Ford | Republican |
| August 1976 | 52.6 | +0.77% | +9.36% | Gerald Ford | Republican |
| July 1976 | 52.2 | +0.97% | +9.21% | Gerald Ford | Republican |
| June 1976 | 51.7 | +0.58% | +9.3% | Gerald Ford | Republican |
| May 1976 | 51.4 | +0.59% | +9.36% | Gerald Ford | Republican |
| April 1976 | 51.1 | +0.59% | +9.42% | Gerald Ford | Republican |
| March 1976 | 50.8 | +0.99% | +9.72% | Gerald Ford | Republican |
| February 1976 | 50.3 | +1.21% | +9.59% | Gerald Ford | Republican |
| January 1976 | 49.7 | +1.02% | +9.71% | Gerald Ford | Republican |
| December 1975 | 49.2 | +0.82% | +9.82% | Gerald Ford | Republican |
| November 1975 | 48.8 | 0% | +10.16% | Gerald Ford | Republican |
| October 1975 | 48.8 | +0.62% | +10.91% | Gerald Ford | Republican |
| September 1975 | 48.5 | +0.83% | +10.98% | Gerald Ford | Republican |
| August 1975 | 48.1 | +0.63% | +11.09% | Gerald Ford | Republican |
| July 1975 | 47.8 | +1.06% | +12.21% | Gerald Ford | Republican |
| June 1975 | 47.3 | +0.64% | +12.35% | Gerald Ford | Republican |
| May 1975 | 47.0 | +0.64% | +13.53% | Gerald Ford | Republican |
| April 1975 | 46.7 | +0.86% | +13.9% | Gerald Ford | Republican |
| March 1975 | 46.3 | +0.87% | +13.48% | Gerald Ford | Republican |
| February 1975 | 45.9 | +1.32% | +13.61% | Gerald Ford | Republican |
| January 1975 | 45.3 | +1.12% | +13.25% | Gerald Ford | Republican |
| December 1974 | 44.8 | +1.13% | +12.56% | Gerald Ford | Republican |
| November 1974 | 44.3 | +0.68% | +11.59% | Gerald Ford | Republican |
| October 1974 | 44.0 | +0.69% | +11.11% | Gerald Ford | Republican |
| September 1974 | 43.7 | +0.92% | +12.34% | Gerald Ford | Republican |
| August 1974 | 43.3 | +1.64% | +11.89% | Gerald Ford | Republican |
| July 1974 | 42.6 | +1.19% | +10.08% | Richard Nixon | Republican |
| June 1974 | 42.1 | +1.69% | +9.07% | Richard Nixon | Republican |
| May 1974 | 41.4 | +0.98% | +7.53% | Richard Nixon | Republican |
| April 1974 | 41.0 | +0.49% | +7.05% | Richard Nixon | Republican |
| March 1974 | 40.8 | +0.99% | +6.81% | Richard Nixon | Republican |
| February 1974 | 40.4 | +1% | +6.04% | Richard Nixon | Republican |
| January 1974 | 40.0 | +0.5% | +5.26% | Richard Nixon | Republican |
| December 1973 | 39.8 | +0.25% | +5.29% | Richard Nixon | Republican |
| November 1973 | 39.7 | +0.25% | +5.03% | Richard Nixon | Republican |
| October 1973 | 39.6 | +1.8% | +5.04% | Richard Nixon | Republican |
| September 1973 | 38.9 | +0.52% | +3.73% | Richard Nixon | Republican |
| August 1973 | 38.7 | 0% | +3.48% | Richard Nixon | Republican |
| July 1973 | 38.7 | +0.26% | +3.48% | Richard Nixon | Republican |
| June 1973 | 38.6 | +0.26% | +3.49% | Richard Nixon | Republican |
| May 1973 | 38.5 | +0.52% | +3.49% | Richard Nixon | Republican |
| April 1973 | 38.3 | +0.26% | +3.23% | Richard Nixon | Republican |
| March 1973 | 38.2 | +0.26% | +3.24% | Richard Nixon | Republican |
| February 1973 | 38.1 | +0.26% | +3.25% | Richard Nixon | Republican |
| January 1973 | 38.0 | +0.53% | +3.54% | Richard Nixon | Republican |
| December 1972 | 37.8 | 0% | +3.28% | Richard Nixon | Republican |
| November 1972 | 37.8 | +0.27% | +3.56% | Richard Nixon | Republican |
| October 1972 | 37.7 | +0.53% | +3.29% | Richard Nixon | Republican |
| September 1972 | 37.5 | +0.27% | +2.18% | Richard Nixon | Republican |
| August 1972 | 37.4 | 0% | +2.19% | Richard Nixon | Republican |
| July 1972 | 37.4 | +0.27% | +2.75% | Richard Nixon | Republican |
| June 1972 | 37.3 | +0.27% | +3.04% | Richard Nixon | Republican |
| May 1972 | 37.2 | +0.27% | +3.05% | Richard Nixon | Republican |
| April 1972 | 37.1 | +0.27% | +3.34% | Richard Nixon | Republican |
| March 1972 | 37.0 | +0.27% | +3.64% | Richard Nixon | Republican |
| February 1972 | 36.9 | +0.54% | +4.24% | Richard Nixon | Republican |
| January 1972 | 36.7 | +0.27% | +4.26% | Richard Nixon | Republican |
| December 1971 | 36.6 | +0.27% | +4.57% | Richard Nixon | Republican |
| November 1971 | 36.5 | 0% | +5.19% | Richard Nixon | Republican |
| October 1971 | 36.5 | -0.54% | +5.49% | Richard Nixon | Republican |
| September 1971 | 36.7 | +0.27% | +6.38% | Richard Nixon | Republican |
| August 1971 | 36.6 | +0.55% | +6.71% | Richard Nixon | Republican |
| July 1971 | 36.4 | +0.55% | +6.43% | Richard Nixon | Republican |
| June 1971 | 36.2 | +0.28% | +6.78% | Richard Nixon | Republican |
| May 1971 | 36.1 | +0.56% | +7.12% | Richard Nixon | Republican |
| April 1971 | 35.9 | +0.56% | +7.16% | Richard Nixon | Republican |
| March 1971 | 35.7 | +0.85% | +7.21% | Richard Nixon | Republican |
| February 1971 | 35.4 | +0.57% | +7.27% | Richard Nixon | Republican |
| January 1971 | 35.2 | +0.57% | +7.65% | Richard Nixon | Republican |
| December 1970 | 35.0 | +0.86% | +7.36% | Richard Nixon | Republican |
| November 1970 | 34.7 | +0.29% | +7.1% | Richard Nixon | Republican |
| October 1970 | 34.6 | +0.29% | +7.12% | Richard Nixon | Republican |
| September 1970 | 34.5 | +0.58% | +6.15% | Richard Nixon | Republican |
| August 1970 | 34.3 | +0.29% | +6.19% | Richard Nixon | Republican |
| July 1970 | 34.2 | +0.88% | +6.54% | Richard Nixon | Republican |
| June 1970 | 33.9 | +0.59% | +5.94% | Richard Nixon | Republican |
| May 1970 | 33.7 | +0.6% | +5.97% | Richard Nixon | Republican |
| April 1970 | 33.5 | +0.6% | +6.01% | Richard Nixon | Republican |
| March 1970 | 33.3 | +0.91% | +6.05% | Richard Nixon | Republican |
| February 1970 | 33.0 | +0.92% | +5.77% | Richard Nixon | Republican |
| January 1970 | 32.7 | +0.31% | +5.83% | Richard Nixon | Republican |
| December 1969 | 32.6 | +0.62% | +6.19% | Richard Nixon | Republican |
| November 1969 | 32.4 | +0.31% | +6.23% | Richard Nixon | Republican |
| October 1969 | 32.3 | -0.62% | +6.25% | Richard Nixon | Republican |
| September 1969 | 32.5 | +0.62% | +7.62% | Richard Nixon | Republican |
| August 1969 | 32.3 | +0.62% | +7.67% | Richard Nixon | Republican |
| July 1969 | 32.1 | +0.31% | +7.36% | Richard Nixon | Republican |
| June 1969 | 32.0 | +0.63% | +7.74% | Richard Nixon | Republican |
| May 1969 | 31.8 | +0.63% | +7.43% | Richard Nixon | Republican |
| April 1969 | 31.6 | +0.64% | +6.76% | Richard Nixon | Republican |
| March 1969 | 31.4 | +0.64% | +6.8% | Richard Nixon | Republican |
| February 1969 | 31.2 | +0.97% | +6.85% | Richard Nixon | Republican |
| January 1969 | 30.9 | +0.65% | +6.19% | Richard Nixon | Republican |
| December 1968 | 30.7 | +0.66% | +6.23% | Lyndon B. Johnson | Democrat |
| November 1968 | 30.5 | +0.33% | +5.9% | Lyndon B. Johnson | Democrat |
| October 1968 | 30.4 | +0.66% | +6.29% | Lyndon B. Johnson | Democrat |
| September 1968 | 30.2 | +0.67% | +5.96% | Lyndon B. Johnson | Democrat |
| August 1968 | 30.0 | +0.33% | +6.01% | Lyndon B. Johnson | Democrat |
| July 1968 | 29.9 | +0.67% | +6.03% | Lyndon B. Johnson | Democrat |
| June 1968 | 29.7 | +0.34% | +5.69% | Lyndon B. Johnson | Democrat |
| May 1968 | 29.6 | 0% | +5.71% | Lyndon B. Johnson | Democrat |
| April 1968 | 29.6 | +0.68% | +6.47% | Lyndon B. Johnson | Democrat |
| March 1968 | 29.4 | +0.68% | +6.14% | Lyndon B. Johnson | Democrat |
| February 1968 | 29.2 | +0.34% | +6.18% | Lyndon B. Johnson | Democrat |
| January 1968 | 29.1 | +0.69% | +6.2% | Lyndon B. Johnson | Democrat |
| December 1967 | 28.9 | +0.35% | +6.25% | Lyndon B. Johnson | Democrat |
| November 1967 | 28.8 | +0.7% | +6.67% | Lyndon B. Johnson | Democrat |
| October 1967 | 28.6 | +0.35% | +6.32% | Lyndon B. Johnson | Democrat |
| September 1967 | 28.5 | +0.71% | +6.74% | Lyndon B. Johnson | Democrat |
| August 1967 | 28.3 | +0.35% | +7.2% | Lyndon B. Johnson | Democrat |
| July 1967 | 28.2 | +0.36% | +7.22% | Lyndon B. Johnson | Democrat |
| June 1967 | 28.1 | +0.36% | +7.25% | Lyndon B. Johnson | Democrat |
| May 1967 | 28.0 | +0.72% | +7.69% | Lyndon B. Johnson | Democrat |
| April 1967 | 27.8 | +0.36% | +7.34% | Lyndon B. Johnson | Democrat |
| March 1967 | 27.7 | +0.73% | +7.36% | Lyndon B. Johnson | Democrat |
| February 1967 | 27.5 | +0.36% | +7.42% | Lyndon B. Johnson | Democrat |
| January 1967 | 27.4 | +0.74% | +7.03% | Lyndon B. Johnson | Democrat |
| December 1966 | 27.2 | +0.74% | +6.67% | Lyndon B. Johnson | Democrat |
| November 1966 | 27.0 | +0.37% | +6.3% | Lyndon B. Johnson | Democrat |
| October 1966 | 26.9 | +0.75% | +6.32% | Lyndon B. Johnson | Democrat |
| September 1966 | 26.7 | +1.14% | +5.53% | Lyndon B. Johnson | Democrat |
| August 1966 | 26.4 | +0.38% | +4.35% | Lyndon B. Johnson | Democrat |
| July 1966 | 26.3 | +0.38% | +3.95% | Lyndon B. Johnson | Democrat |
| June 1966 | 26.2 | +0.77% | +3.97% | Lyndon B. Johnson | Democrat |
| May 1966 | 26.0 | +0.39% | +3.59% | Lyndon B. Johnson | Democrat |
| April 1966 | 25.9 | +0.39% | +3.19% | Lyndon B. Johnson | Democrat |
| March 1966 | 25.8 | +0.78% | +3.2% | Lyndon B. Johnson | Democrat |
| February 1966 | 25.6 | 0% | +2.81% | Lyndon B. Johnson | Democrat |
| January 1966 | 25.6 | +0.39% | +3.23% | Lyndon B. Johnson | Democrat |
| December 1965 | 25.5 | +0.39% | +2.82% | Lyndon B. Johnson | Democrat |
| November 1965 | 25.4 | +0.4% | +2.83% | Lyndon B. Johnson | Democrat |
| October 1965 | 25.3 | 0% | +2.43% | Lyndon B. Johnson | Democrat |
| September 1965 | 25.3 | 0% | +2.43% | Lyndon B. Johnson | Democrat |
| August 1965 | 25.3 | 0% | +2.43% | Lyndon B. Johnson | Democrat |
| July 1965 | 25.3 | +0.4% | +2.85% | Lyndon B. Johnson | Democrat |
| June 1965 | 25.2 | +0.4% | +2.44% | Lyndon B. Johnson | Democrat |
| May 1965 | 25.1 | 0% | +2.45% | Lyndon B. Johnson | Democrat |
| April 1965 | 25.1 | +0.4% | +2.45% | Lyndon B. Johnson | Democrat |
| March 1965 | 25.0 | +0.4% | +2.46% | Lyndon B. Johnson | Democrat |
| February 1965 | 24.9 | +0.4% | +2.05% | Lyndon B. Johnson | Democrat |
| January 1965 | 24.8 | 0% | +1.64% | Lyndon B. Johnson | Democrat |
| December 1964 | 24.8 | +0.4% | +2.06% | Lyndon B. Johnson | Democrat |
| November 1964 | 24.7 | 0% | +1.65% | Lyndon B. Johnson | Democrat |
| October 1964 | 24.7 | 0% | +2.07% | Lyndon B. Johnson | Democrat |
| September 1964 | 24.7 | 0% | +2.07% | Lyndon B. Johnson | Democrat |
| August 1964 | 24.7 | +0.41% | +2.07% | Lyndon B. Johnson | Democrat |
| July 1964 | 24.6 | 0% | +1.65% | Lyndon B. Johnson | Democrat |
| June 1964 | 24.6 | +0.41% | +2.07% | Lyndon B. Johnson | Democrat |
| May 1964 | 24.5 | 0% | +2.08% | Lyndon B. Johnson | Democrat |
| April 1964 | 24.5 | +0.41% | +2.08% | Lyndon B. Johnson | Democrat |
| March 1964 | 24.4 | 0% | +2.09% | Lyndon B. Johnson | Democrat |
| February 1964 | 24.4 | 0% | +2.09% | Lyndon B. Johnson | Democrat |
| January 1964 | 24.4 | +0.41% | +2.52% | Lyndon B. Johnson | Democrat |
| December 1963 | 24.3 | 0% | +2.53% | Lyndon B. Johnson | Democrat |
| November 1963 | 24.3 | +0.41% | +2.53% | John F. Kennedy | Democrat |
| October 1963 | 24.2 | 0% | +2.11% | John F. Kennedy | Democrat |
| September 1963 | 24.2 | 0% | +2.54% | John F. Kennedy | Democrat |
| August 1963 | 24.2 | 0% | +2.54% | John F. Kennedy | Democrat |
| July 1963 | 24.2 | +0.41% | +2.54% | John F. Kennedy | Democrat |
| June 1963 | 24.1 | +0.42% | +2.12% | John F. Kennedy | Democrat |
| May 1963 | 24.0 | 0% | +2.13% | John F. Kennedy | Democrat |
| April 1963 | 24.0 | +0.42% | +2.13% | John F. Kennedy | Democrat |
| March 1963 | 23.9 | 0% | +2.14% | John F. Kennedy | Democrat |
| February 1963 | 23.9 | +0.42% | +2.58% | John F. Kennedy | Democrat |
| January 1963 | 23.8 | +0.42% | +2.59% | John F. Kennedy | Democrat |
| December 1962 | 23.7 | 0% | +2.16% | John F. Kennedy | Democrat |
| November 1962 | 23.7 | 0% | +2.6% | John F. Kennedy | Democrat |
| October 1962 | 23.7 | +0.42% | +2.6% | John F. Kennedy | Democrat |
| September 1962 | 23.6 | 0% | +2.16% | John F. Kennedy | Democrat |
| August 1962 | 23.6 | 0% | +2.61% | John F. Kennedy | Democrat |
| July 1962 | 23.6 | 0% | +2.61% | John F. Kennedy | Democrat |
| June 1962 | 23.6 | +0.43% | +3.06% | John F. Kennedy | Democrat |
| May 1962 | 23.5 | 0% | +2.62% | John F. Kennedy | Democrat |
| April 1962 | 23.5 | +0.43% | +3.07% | John F. Kennedy | Democrat |
| March 1962 | 23.4 | +0.43% | +3.08% | John F. Kennedy | Democrat |
| February 1962 | 23.3 | +0.43% | +2.64% | John F. Kennedy | Democrat |
| January 1962 | 23.2 | 0% | +2.65% | John F. Kennedy | Democrat |
| December 1961 | 23.2 | +0.43% | +3.11% | John F. Kennedy | Democrat |
| November 1961 | 23.1 | 0% | +2.67% | John F. Kennedy | Democrat |
| October 1961 | 23.1 | 0% | +3.13% | John F. Kennedy | Democrat |
| September 1961 | 23.1 | +0.43% | +3.13% | John F. Kennedy | Democrat |
| August 1961 | 23.0 | 0% | +3.14% | John F. Kennedy | Democrat |
| July 1961 | 23.0 | +0.44% | +3.14% | John F. Kennedy | Democrat |
| June 1961 | 22.9 | 0% | +3.15% | John F. Kennedy | Democrat |
| May 1961 | 22.9 | +0.44% | +3.15% | John F. Kennedy | Democrat |
| April 1961 | 22.8 | +0.44% | +2.7% | John F. Kennedy | Democrat |
| March 1961 | 22.7 | 0% | +2.71% | John F. Kennedy | Democrat |
| February 1961 | 22.7 | +0.44% | +3.18% | John F. Kennedy | Democrat |
| January 1961 | 22.6 | +0.44% | +3.2% | John F. Kennedy | Democrat |
| December 1960 | 22.5 | 0% | +3.21% | Dwight D. Eisenhower | Republican |
| November 1960 | 22.5 | +0.45% | +3.21% | Dwight D. Eisenhower | Republican |
| October 1960 | 22.4 | 0% | +3.23% | Dwight D. Eisenhower | Republican |
| September 1960 | 22.4 | +0.45% | +3.23% | Dwight D. Eisenhower | Republican |
| August 1960 | 22.3 | 0% | +3.24% | Dwight D. Eisenhower | Republican |
| July 1960 | 22.3 | +0.45% | +3.72% | Dwight D. Eisenhower | Republican |
| June 1960 | 22.2 | 0% | +3.26% | Dwight D. Eisenhower | Republican |
| May 1960 | 22.2 | 0% | +3.74% | Dwight D. Eisenhower | Republican |
| April 1960 | 22.2 | +0.45% | +4.23% | Dwight D. Eisenhower | Republican |
| March 1960 | 22.1 | +0.45% | +3.76% | Dwight D. Eisenhower | Republican |
| February 1960 | 22.0 | +0.46% | +3.77% | Dwight D. Eisenhower | Republican |
| January 1960 | 21.9 | +0.46% | +3.79% | Dwight D. Eisenhower | Republican |
| December 1959 | 21.8 | 0% | +3.81% | Dwight D. Eisenhower | Republican |
| November 1959 | 21.8 | +0.46% | +3.81% | Dwight D. Eisenhower | Republican |
| October 1959 | 21.7 | 0% | +3.33% | Dwight D. Eisenhower | Republican |
| September 1959 | 21.7 | +0.46% | +3.83% | Dwight D. Eisenhower | Republican |
| August 1959 | 21.6 | +0.47% | +4.35% | Dwight D. Eisenhower | Republican |
| July 1959 | 21.5 | 0% | +3.86% | Dwight D. Eisenhower | Republican |
| June 1959 | 21.5 | +0.47% | +4.37% | Dwight D. Eisenhower | Republican |
| May 1959 | 21.4 | +0.47% | +4.39% | Dwight D. Eisenhower | Republican |
| April 1959 | 21.3 | 0% | +4.41% | Dwight D. Eisenhower | Republican |
| March 1959 | 21.3 | +0.47% | +4.93% | Dwight D. Eisenhower | Republican |
| February 1959 | 21.2 | +0.47% | +4.95% | Dwight D. Eisenhower | Republican |
| January 1959 | 21.1 | +0.48% | +4.46% | Dwight D. Eisenhower | Republican |
| December 1958 | 21.0 | 0% | +4.48% | Dwight D. Eisenhower | Republican |
| November 1958 | 21.0 | 0% | +5% | Dwight D. Eisenhower | Republican |
| October 1958 | 21.0 | +0.48% | +5.53% | Dwight D. Eisenhower | Republican |
| September 1958 | 20.9 | +0.97% | +5.56% | Dwight D. Eisenhower | Republican |
| August 1958 | 20.7 | 0% | +4.55% | Dwight D. Eisenhower | Republican |
| July 1958 | 20.7 | +0.49% | +5.08% | Dwight D. Eisenhower | Republican |
| June 1958 | 20.6 | +0.49% | +4.57% | Dwight D. Eisenhower | Republican |
| May 1958 | 20.5 | +0.49% | +4.59% | Dwight D. Eisenhower | Republican |
| April 1958 | 20.4 | +0.49% | +4.62% | Dwight D. Eisenhower | Republican |
| March 1958 | 20.3 | +0.5% | +4.1% | Dwight D. Eisenhower | Republican |
| February 1958 | 20.2 | 0% | +4.66% | Dwight D. Eisenhower | Republican |
| January 1958 | 20.2 | +0.5% | +4.66% | Dwight D. Eisenhower | Republican |
| December 1957 | 20.1 | +0.5% | +4.69% | Dwight D. Eisenhower | Republican |
| November 1957 | 20.0 | +0.5% | +4.17% | Dwight D. Eisenhower | Republican |
| October 1957 | 19.9 | +0.51% | +4.19% | Dwight D. Eisenhower | Republican |
| September 1957 | 19.8 | 0% | +3.66% | Dwight D. Eisenhower | Republican |
| August 1957 | 19.8 | +0.51% | +4.21% | Dwight D. Eisenhower | Republican |
| July 1957 | 19.7 | 0% | +4.23% | Dwight D. Eisenhower | Republican |
| June 1957 | 19.7 | +0.51% | +4.79% | Dwight D. Eisenhower | Republican |
| May 1957 | 19.6 | +0.51% | +4.26% | Dwight D. Eisenhower | Republican |
| April 1957 | 19.5 | 0% | +3.72% | Dwight D. Eisenhower | Republican |
| March 1957 | 19.5 | +1.04% | +4.28% | Dwight D. Eisenhower | Republican |
| February 1957 | 19.3 | 0% | +3.21% | Dwight D. Eisenhower | Republican |
| January 1957 | 19.3 | +0.52% | +3.76% | Dwight D. Eisenhower | Republican |
| December 1956 | 19.2 | 0% | +3.23% | Dwight D. Eisenhower | Republican |
| November 1956 | 19.2 | +0.52% | +3.78% | Dwight D. Eisenhower | Republican |
| October 1956 | 19.1 | 0% | +3.8% | Dwight D. Eisenhower | Republican |
| September 1956 | 19.1 | +0.53% | +4.37% | Dwight D. Eisenhower | Republican |
| August 1956 | 19.0 | +0.53% | +4.4% | Dwight D. Eisenhower | Republican |
| July 1956 | 18.9 | +0.53% | +3.85% | Dwight D. Eisenhower | Republican |
| June 1956 | 18.8 | 0% | +3.3% | Dwight D. Eisenhower | Republican |
| May 1956 | 18.8 | 0% | +3.3% | Dwight D. Eisenhower | Republican |
| April 1956 | 18.8 | +0.53% | +3.87% | Dwight D. Eisenhower | Republican |
| March 1956 | 18.7 | 0% | +3.31% | Dwight D. Eisenhower | Republican |
| February 1956 | 18.7 | +0.54% | +3.31% | Dwight D. Eisenhower | Republican |
| January 1956 | 18.6 | 0% | +3.33% | Dwight D. Eisenhower | Republican |
| December 1955 | 18.6 | +0.54% | +3.33% | Dwight D. Eisenhower | Republican |
| November 1955 | 18.5 | +0.54% | +2.78% | Dwight D. Eisenhower | Republican |
| October 1955 | 18.4 | +0.55% | +2.79% | Dwight D. Eisenhower | Republican |
| September 1955 | 18.3 | +0.55% | +2.23% | Dwight D. Eisenhower | Republican |
| August 1955 | 18.2 | 0% | +1.68% | Dwight D. Eisenhower | Republican |
| July 1955 | 18.2 | 0% | +2.25% | Dwight D. Eisenhower | Republican |
| June 1955 | 18.2 | 0% | +2.25% | Dwight D. Eisenhower | Republican |
| May 1955 | 18.2 | +0.55% | +2.25% | Dwight D. Eisenhower | Republican |
| April 1955 | 18.1 | 0% | +1.69% | Dwight D. Eisenhower | Republican |
| March 1955 | 18.1 | 0% | +2.26% | Dwight D. Eisenhower | Republican |
| February 1955 | 18.1 | +0.56% | +2.26% | Dwight D. Eisenhower | Republican |
| January 1955 | 18.0 | 0% | +2.27% | Dwight D. Eisenhower | Republican |
| December 1954 | 18.0 | 0% | +2.27% | Dwight D. Eisenhower | Republican |
| November 1954 | 18.0 | +0.56% | +2.27% | Dwight D. Eisenhower | Republican |
| October 1954 | 17.9 | 0% | +2.29% | Dwight D. Eisenhower | Republican |
| September 1954 | 17.9 | 0% | +2.29% | Dwight D. Eisenhower | Republican |
| August 1954 | 17.9 | +0.56% | +2.87% | Dwight D. Eisenhower | Republican |
| July 1954 | 17.8 | 0% | +2.89% | Dwight D. Eisenhower | Republican |
| June 1954 | 17.8 | 0% | +2.89% | Dwight D. Eisenhower | Republican |
| May 1954 | 17.8 | 0% | +3.49% | Dwight D. Eisenhower | Republican |
| April 1954 | 17.8 | +0.56% | +4.09% | Dwight D. Eisenhower | Republican |
| March 1954 | 17.7 | 0% | +4.12% | Dwight D. Eisenhower | Republican |
| February 1954 | 17.7 | +0.57% | +4.12% | Dwight D. Eisenhower | Republican |
| January 1954 | 17.6 | 0% | +3.53% | Dwight D. Eisenhower | Republican |
| December 1953 | 17.6 | 0% | — | Dwight D. Eisenhower | Republican |
| November 1953 | 17.6 | +0.57% | — | Dwight D. Eisenhower | Republican |
| October 1953 | 17.5 | 0% | — | Dwight D. Eisenhower | Republican |
| September 1953 | 17.5 | +0.57% | — | Dwight D. Eisenhower | Republican |
| August 1953 | 17.4 | +0.58% | — | Dwight D. Eisenhower | Republican |
| July 1953 | 17.3 | 0% | — | Dwight D. Eisenhower | Republican |
| June 1953 | 17.3 | +0.58% | — | Dwight D. Eisenhower | Republican |
| May 1953 | 17.2 | +0.58% | — | Dwight D. Eisenhower | Republican |
| April 1953 | 17.1 | +0.59% | — | Dwight D. Eisenhower | Republican |
| March 1953 | 17.0 | 0% | — | Dwight D. Eisenhower | Republican |
| February 1953 | 17.0 | 0% | — | Dwight D. Eisenhower | Republican |
| January 1953 | 17.0 | — | — | Dwight D. Eisenhower | Republican |