Prescription Drugs Inflation Data
Prescription Drugs Inflation Rate
Prescription drugs in U.S. city average, all urban consumers, not seasonally adjusted
+2.15% YoY
Best YoY Inflation
-4.28%
September 1961
John F. Kennedy (Democrat)
Worst YoY Inflation
+12.67%
October 1981
Ronald Reagan (Republican)
Average YoY by Party
Republican: +5.02%
Democrat: +3.37%
Inflation Trend Over the Last 8 Years
Full Inflation History
| Date | Value | MoM | YoY | President | Party |
|---|---|---|---|---|---|
| March 2025 | 561.2 | -2.02% | +2.15% | Donald Trump (2nd Term) | Republican |
| February 2025 | 572.8 | +0.02% | +4.58% | Donald Trump (2nd Term) | Republican |
| January 2025 | 572.7 | +2.49% | +4.45% | Donald Trump (2nd Term) | Republican |
| December 2024 | 558.7 | +0.04% | +1.11% | Joe Biden | Democrat |
| November 2024 | 558.5 | -0.42% | +0.7% | Joe Biden | Democrat |
| October 2024 | 560.8 | +0.24% | +1.59% | Joe Biden | Democrat |
| September 2024 | 559.5 | -0.48% | +2.18% | Joe Biden | Democrat |
| August 2024 | 562.2 | -0.15% | +1.96% | Joe Biden | Democrat |
| July 2024 | 563.0 | +0.12% | +2.52% | Joe Biden | Democrat |
| June 2024 | 562.3 | +0.03% | +2.4% | Joe Biden | Democrat |
| May 2024 | 562.2 | +2.09% | +2.41% | Joe Biden | Democrat |
| April 2024 | 550.7 | +0.23% | +0.4% | Joe Biden | Democrat |
| March 2024 | 549.4 | +0.32% | +0.43% | Joe Biden | Democrat |
| February 2024 | 547.7 | -0.1% | +0.25% | Joe Biden | Democrat |
| January 2024 | 548.3 | -0.79% | +0.39% | Joe Biden | Democrat |
| December 2023 | 552.6 | -0.36% | +3.31% | Joe Biden | Democrat |
| November 2023 | 554.6 | +0.46% | +3.78% | Joe Biden | Democrat |
| October 2023 | 552.1 | +0.82% | +3.14% | Joe Biden | Democrat |
| September 2023 | 547.6 | -0.68% | +2.19% | Joe Biden | Democrat |
| August 2023 | 551.3 | +0.39% | +2.82% | Joe Biden | Democrat |
| July 2023 | 549.2 | +0.01% | +2.79% | Joe Biden | Democrat |
| June 2023 | 549.1 | +0.04% | +3.09% | Joe Biden | Democrat |
| May 2023 | 548.9 | +0.08% | +3.14% | Joe Biden | Democrat |
| April 2023 | 548.5 | +0.26% | +2.91% | Joe Biden | Democrat |
| March 2023 | 547.1 | +0.14% | +2.7% | Joe Biden | Democrat |
| February 2023 | 546.3 | +0.04% | +2.38% | Joe Biden | Democrat |
| January 2023 | 546.1 | +2.1% | +2.64% | Joe Biden | Democrat |
| December 2022 | 534.9 | +0.09% | +1.84% | Joe Biden | Democrat |
| November 2022 | 534.4 | -0.16% | +1.89% | Joe Biden | Democrat |
| October 2022 | 535.3 | -0.11% | +2.17% | Joe Biden | Democrat |
| September 2022 | 535.8 | -0.07% | +2.74% | Joe Biden | Democrat |
| August 2022 | 536.2 | +0.36% | +3.17% | Joe Biden | Democrat |
| July 2022 | 534.3 | +0.31% | +2.76% | Joe Biden | Democrat |
| June 2022 | 532.7 | +0.09% | +2.46% | Joe Biden | Democrat |
| May 2022 | 532.2 | -0.15% | +1.93% | Joe Biden | Democrat |
| April 2022 | 533.0 | +0.05% | +1.74% | Joe Biden | Democrat |
| March 2022 | 532.7 | -0.16% | +2.17% | Joe Biden | Democrat |
| February 2022 | 533.6 | +0.29% | +2.37% | Joe Biden | Democrat |
| January 2022 | 532.0 | +1.29% | +1.26% | Joe Biden | Democrat |
| December 2021 | 525.3 | +0.14% | 0% | Joe Biden | Democrat |
| November 2021 | 524.5 | +0.12% | -0.32% | Joe Biden | Democrat |
| October 2021 | 523.9 | +0.45% | -0.72% | Joe Biden | Democrat |
| September 2021 | 521.5 | +0.34% | -1.6% | Joe Biden | Democrat |
| August 2021 | 519.7 | -0.04% | -2.72% | Joe Biden | Democrat |
| July 2021 | 520.0 | +0.02% | -2.55% | Joe Biden | Democrat |
| June 2021 | 519.9 | -0.43% | -2.55% | Joe Biden | Democrat |
| May 2021 | 522.1 | -0.34% | -2.1% | Joe Biden | Democrat |
| April 2021 | 523.9 | +0.48% | -1.85% | Joe Biden | Democrat |
| March 2021 | 521.4 | +0.03% | -2.34% | Joe Biden | Democrat |
| February 2021 | 521.2 | -0.8% | -2.67% | Joe Biden | Democrat |
| January 2021 | 525.4 | +0.04% | -2.36% | Joe Biden | Democrat |
| December 2020 | 525.2 | -0.18% | -2.36% | Donald Trump (1st Term) | Republican |
| November 2020 | 526.2 | -0.28% | -0.4% | Donald Trump (1st Term) | Republican |
| October 2020 | 527.7 | -0.44% | -0.38% | Donald Trump (1st Term) | Republican |
| September 2020 | 530.0 | -0.8% | +1.43% | Donald Trump (1st Term) | Republican |
| August 2020 | 534.3 | +0.13% | +1.45% | Donald Trump (1st Term) | Republican |
| July 2020 | 533.6 | +0.02% | +1.66% | Donald Trump (1st Term) | Republican |
| June 2020 | 533.5 | +0.02% | +2.01% | Donald Trump (1st Term) | Republican |
| May 2020 | 533.3 | -0.08% | +1.31% | Donald Trump (1st Term) | Republican |
| April 2020 | 533.8 | -0.02% | +1.09% | Donald Trump (1st Term) | Republican |
| March 2020 | 533.9 | -0.31% | +1.48% | Donald Trump (1st Term) | Republican |
| February 2020 | 535.6 | -0.48% | +2.41% | Donald Trump (1st Term) | Republican |
| January 2020 | 538.2 | +0.04% | +2.49% | Donald Trump (1st Term) | Republican |
| December 2019 | 538.0 | +1.83% | +3.03% | Donald Trump (1st Term) | Republican |
| November 2019 | 528.3 | -0.25% | +0.53% | Donald Trump (1st Term) | Republican |
| October 2019 | 529.6 | +1.36% | +1.01% | Donald Trump (1st Term) | Republican |
| September 2019 | 522.5 | -0.78% | -1.06% | Donald Trump (1st Term) | Republican |
| August 2019 | 526.6 | +0.34% | -0.67% | Donald Trump (1st Term) | Republican |
| July 2019 | 524.8 | +0.36% | -0.76% | Donald Trump (1st Term) | Republican |
| June 2019 | 523.0 | -0.66% | -2.02% | Donald Trump (1st Term) | Republican |
| May 2019 | 526.4 | -0.3% | -0.99% | Donald Trump (1st Term) | Republican |
| April 2019 | 528.0 | +0.36% | +0.32% | Donald Trump (1st Term) | Republican |
| March 2019 | 526.1 | +0.6% | -0.39% | Donald Trump (1st Term) | Republican |
| February 2019 | 523.0 | -0.41% | -1.19% | Donald Trump (1st Term) | Republican |
| January 2019 | 525.1 | +0.57% | -0.51% | Donald Trump (1st Term) | Republican |
| December 2018 | 522.1 | -0.64% | -0.62% | Donald Trump (1st Term) | Republican |
| November 2018 | 525.5 | +0.21% | +0.59% | Donald Trump (1st Term) | Republican |
| October 2018 | 524.4 | -0.71% | +0.77% | Donald Trump (1st Term) | Republican |
| September 2018 | 528.1 | -0.39% | +1.17% | Donald Trump (1st Term) | Republican |
| August 2018 | 530.2 | +0.25% | +0.77% | Donald Trump (1st Term) | Republican |
| July 2018 | 528.9 | -0.91% | +0.92% | Donald Trump (1st Term) | Republican |
| June 2018 | 533.7 | +0.38% | +3.19% | Donald Trump (1st Term) | Republican |
| May 2018 | 531.7 | +1.01% | +3.73% | Donald Trump (1st Term) | Republican |
| April 2018 | 526.4 | -0.34% | +2.65% | Donald Trump (1st Term) | Republican |
| March 2018 | 528.2 | -0.21% | +1.87% | Donald Trump (1st Term) | Republican |
| February 2018 | 529.3 | +0.29% | +2.06% | Donald Trump (1st Term) | Republican |
| January 2018 | 527.8 | +0.45% | +2.39% | Donald Trump (1st Term) | Republican |
| December 2017 | 525.4 | +0.57% | +2.78% | Donald Trump (1st Term) | Republican |
| November 2017 | 522.4 | +0.4% | +2.17% | Donald Trump (1st Term) | Republican |
| October 2017 | 520.4 | -0.32% | +1.01% | Donald Trump (1st Term) | Republican |
| September 2017 | 522.0 | -0.78% | +1.41% | Donald Trump (1st Term) | Republican |
| August 2017 | 526.1 | +0.39% | +2.74% | Donald Trump (1st Term) | Republican |
| July 2017 | 524.1 | +1.32% | +4.22% | Donald Trump (1st Term) | Republican |
| June 2017 | 517.2 | +0.91% | +3.83% | Donald Trump (1st Term) | Republican |
| May 2017 | 512.6 | -0.03% | +3.91% | Donald Trump (1st Term) | Republican |
| April 2017 | 512.7 | -1.11% | +3.1% | Donald Trump (1st Term) | Republican |
| March 2017 | 518.5 | -0.03% | +4.7% | Donald Trump (1st Term) | Republican |
| February 2017 | 518.6 | +0.61% | +5.18% | Donald Trump (1st Term) | Republican |
| January 2017 | 515.5 | +0.84% | +6.11% | Donald Trump (1st Term) | Republican |
| December 2016 | 511.2 | -0.02% | +6.25% | Barack Obama | Democrat |
| November 2016 | 511.3 | -0.75% | +5.98% | Barack Obama | Democrat |
| October 2016 | 515.2 | +0.07% | +7.01% | Barack Obama | Democrat |
| September 2016 | 514.8 | +0.53% | +6.97% | Barack Obama | Democrat |
| August 2016 | 512.1 | +1.84% | +6.15% | Barack Obama | Democrat |
| July 2016 | 502.8 | +0.94% | +4.71% | Barack Obama | Democrat |
| June 2016 | 498.1 | +0.98% | +3.86% | Barack Obama | Democrat |
| May 2016 | 493.3 | -0.81% | +3.08% | Barack Obama | Democrat |
| April 2016 | 497.3 | +0.43% | +3.99% | Barack Obama | Democrat |
| March 2016 | 495.2 | +0.43% | +3.58% | Barack Obama | Democrat |
| February 2016 | 493.1 | +1.5% | +3.45% | Barack Obama | Democrat |
| January 2016 | 485.8 | +0.97% | +2.98% | Barack Obama | Democrat |
| December 2015 | 481.1 | -0.28% | +2.42% | Barack Obama | Democrat |
| November 2015 | 482.5 | +0.22% | +3.44% | Barack Obama | Democrat |
| October 2015 | 481.4 | +0.04% | +3.67% | Barack Obama | Democrat |
| September 2015 | 481.3 | -0.23% | +4.2% | Barack Obama | Democrat |
| August 2015 | 482.4 | +0.45% | +4.68% | Barack Obama | Democrat |
| July 2015 | 480.2 | +0.12% | +4.43% | Barack Obama | Democrat |
| June 2015 | 479.6 | +0.22% | +4.81% | Barack Obama | Democrat |
| May 2015 | 478.6 | +0.08% | +5.33% | Barack Obama | Democrat |
| April 2015 | 478.2 | +0.03% | +5.56% | Barack Obama | Democrat |
| March 2015 | 478.1 | +0.3% | +5.74% | Barack Obama | Democrat |
| February 2015 | 476.6 | +1.04% | +5.19% | Barack Obama | Democrat |
| January 2015 | 471.8 | +0.42% | +5.59% | Barack Obama | Democrat |
| December 2014 | 469.8 | +0.71% | +6.38% | Barack Obama | Democrat |
| November 2014 | 466.5 | +0.45% | +4.58% | Barack Obama | Democrat |
| October 2014 | 464.4 | +0.54% | +4.11% | Barack Obama | Democrat |
| September 2014 | 461.9 | +0.22% | +3.75% | Barack Obama | Democrat |
| August 2014 | 460.8 | +0.22% | +3.65% | Barack Obama | Democrat |
| July 2014 | 459.8 | +0.49% | +4.15% | Barack Obama | Democrat |
| June 2014 | 457.6 | +0.72% | +4.07% | Barack Obama | Democrat |
| May 2014 | 454.4 | +0.3% | +3.56% | Barack Obama | Democrat |
| April 2014 | 453.0 | +0.2% | +2.42% | Barack Obama | Democrat |
| March 2014 | 452.1 | -0.22% | +2.08% | Barack Obama | Democrat |
| February 2014 | 453.1 | +1.42% | +2.57% | Barack Obama | Democrat |
| January 2014 | 446.8 | +1.17% | +1.4% | Barack Obama | Democrat |
| December 2013 | 441.6 | -1% | +0.84% | Barack Obama | Democrat |
| November 2013 | 446.0 | -0% | +1.23% | Barack Obama | Democrat |
| October 2013 | 446.0 | +0.2% | +0.55% | Barack Obama | Democrat |
| September 2013 | 445.2 | +0.12% | +0.37% | Barack Obama | Democrat |
| August 2013 | 444.6 | +0.71% | +0.17% | Barack Obama | Democrat |
| July 2013 | 441.5 | +0.4% | -0.14% | Barack Obama | Democrat |
| June 2013 | 439.7 | +0.23% | +0.06% | Barack Obama | Democrat |
| May 2013 | 438.7 | -0.81% | -0.1% | Barack Obama | Democrat |
| April 2013 | 442.3 | -0.14% | +0.58% | Barack Obama | Democrat |
| March 2013 | 442.9 | +0.26% | +0.72% | Barack Obama | Democrat |
| February 2013 | 441.8 | +0.27% | +0.76% | Barack Obama | Democrat |
| January 2013 | 440.6 | +0.61% | +1.61% | Barack Obama | Democrat |
| December 2012 | 437.9 | -0.61% | +1.88% | Barack Obama | Democrat |
| November 2012 | 440.6 | -0.68% | +2.77% | Barack Obama | Democrat |
| October 2012 | 443.6 | +0.02% | +3.58% | Barack Obama | Democrat |
| September 2012 | 443.5 | -0.08% | +3.73% | Barack Obama | Democrat |
| August 2012 | 443.9 | +0.4% | +4% | Barack Obama | Democrat |
| July 2012 | 442.1 | +0.61% | +3.88% | Barack Obama | Democrat |
| June 2012 | 439.5 | +0.07% | +3.46% | Barack Obama | Democrat |
| May 2012 | 439.1 | -0.15% | +3.28% | Barack Obama | Democrat |
| April 2012 | 439.8 | 0% | +3.66% | Barack Obama | Democrat |
| March 2012 | 439.8 | +0.3% | +4.17% | Barack Obama | Democrat |
| February 2012 | 438.5 | +1.12% | +4.31% | Barack Obama | Democrat |
| January 2012 | 433.6 | +0.87% | +4.16% | Barack Obama | Democrat |
| December 2011 | 429.8 | +0.26% | +4.13% | Barack Obama | Democrat |
| November 2011 | 428.7 | +0.1% | +4.04% | Barack Obama | Democrat |
| October 2011 | 428.3 | +0.16% | +4.22% | Barack Obama | Democrat |
| September 2011 | 427.6 | +0.19% | +4.22% | Barack Obama | Democrat |
| August 2011 | 426.8 | +0.28% | +4.32% | Barack Obama | Democrat |
| July 2011 | 425.6 | +0.2% | +4.55% | Barack Obama | Democrat |
| June 2011 | 424.8 | -0.1% | +4.22% | Barack Obama | Democrat |
| May 2011 | 425.2 | +0.22% | +4.44% | Barack Obama | Democrat |
| April 2011 | 424.3 | +0.5% | +4.34% | Barack Obama | Democrat |
| March 2011 | 422.2 | +0.44% | +4.04% | Barack Obama | Democrat |
| February 2011 | 420.3 | +0.98% | +4.02% | Barack Obama | Democrat |
| January 2011 | 416.3 | +0.84% | +3.94% | Barack Obama | Democrat |
| December 2010 | 412.8 | +0.17% | +4.1% | Barack Obama | Democrat |
| November 2010 | 412.1 | +0.27% | +4% | Barack Obama | Democrat |
| October 2010 | 410.9 | +0.16% | +3.84% | Barack Obama | Democrat |
| September 2010 | 410.3 | +0.29% | +3.95% | Barack Obama | Democrat |
| August 2010 | 409.1 | +0.5% | +4.15% | Barack Obama | Democrat |
| July 2010 | 407.1 | -0.12% | +4.22% | Barack Obama | Democrat |
| June 2010 | 407.6 | +0.11% | +4.35% | Barack Obama | Democrat |
| May 2010 | 407.1 | +0.12% | +4.33% | Barack Obama | Democrat |
| April 2010 | 406.6 | +0.21% | +4.61% | Barack Obama | Democrat |
| March 2010 | 405.8 | +0.41% | +4.89% | Barack Obama | Democrat |
| February 2010 | 404.1 | +0.9% | +4.56% | Barack Obama | Democrat |
| January 2010 | 400.5 | +1% | +4.49% | Barack Obama | Democrat |
| December 2009 | 396.5 | +0.08% | +4.37% | Barack Obama | Democrat |
| November 2009 | 396.2 | +0.12% | +4.41% | Barack Obama | Democrat |
| October 2009 | 395.8 | +0.27% | +4.71% | Barack Obama | Democrat |
| September 2009 | 394.7 | +0.49% | +4.67% | Barack Obama | Democrat |
| August 2009 | 392.8 | +0.57% | +4.36% | Barack Obama | Democrat |
| July 2009 | 390.6 | 0% | +3.65% | Barack Obama | Democrat |
| June 2009 | 390.6 | +0.09% | +3.48% | Barack Obama | Democrat |
| May 2009 | 390.2 | +0.39% | +3.47% | Barack Obama | Democrat |
| April 2009 | 388.7 | +0.48% | +2.4% | Barack Obama | Democrat |
| March 2009 | 386.9 | +0.1% | +1.7% | Barack Obama | Democrat |
| February 2009 | 386.5 | +0.83% | +1.89% | Barack Obama | Democrat |
| January 2009 | 383.3 | +0.88% | +1.44% | Barack Obama | Democrat |
| December 2008 | 379.9 | +0.12% | +1.48% | George W. Bush | Republican |
| November 2008 | 379.5 | +0.4% | +1.66% | George W. Bush | Republican |
| October 2008 | 378.0 | +0.23% | +1.64% | George W. Bush | Republican |
| September 2008 | 377.1 | +0.19% | +1.65% | George W. Bush | Republican |
| August 2008 | 376.4 | -0.11% | +1.53% | George W. Bush | Republican |
| July 2008 | 376.8 | -0.16% | +2.01% | George W. Bush | Republican |
| June 2008 | 377.4 | +0.08% | +2.9% | George W. Bush | Republican |
| May 2008 | 377.1 | -0.65% | +2.78% | George W. Bush | Republican |
| April 2008 | 379.6 | -0.21% | +3.48% | George W. Bush | Republican |
| March 2008 | 380.4 | +0.29% | +4.2% | George W. Bush | Republican |
| February 2008 | 379.3 | +0.39% | +3.48% | George W. Bush | Republican |
| January 2008 | 377.8 | +0.92% | +2.93% | George W. Bush | Republican |
| December 2007 | 374.4 | +0.3% | +3.34% | George W. Bush | Republican |
| November 2007 | 373.3 | +0.38% | +2.41% | George W. Bush | Republican |
| October 2007 | 371.9 | +0.24% | +1.13% | George W. Bush | Republican |
| September 2007 | 371.0 | +0.07% | +0.7% | George W. Bush | Republican |
| August 2007 | 370.7 | +0.36% | +0.96% | George W. Bush | Republican |
| July 2007 | 369.4 | +0.71% | +0.9% | George W. Bush | Republican |
| June 2007 | 366.8 | -0.05% | +0.43% | George W. Bush | Republican |
| May 2007 | 367.0 | +0.03% | +0.76% | George W. Bush | Republican |
| April 2007 | 366.8 | +0.48% | +1.14% | George W. Bush | Republican |
| March 2007 | 365.1 | -0.4% | +0.99% | George W. Bush | Republican |
| February 2007 | 366.6 | -0.14% | +1.85% | George W. Bush | Republican |
| January 2007 | 367.1 | +1.32% | +2.65% | George W. Bush | Republican |
| December 2006 | 362.3 | -0.6% | +1.86% | George W. Bush | Republican |
| November 2006 | 364.5 | -0.87% | +2.65% | George W. Bush | Republican |
| October 2006 | 367.7 | -0.19% | +4.11% | George W. Bush | Republican |
| September 2006 | 368.4 | +0.33% | +4.72% | George W. Bush | Republican |
| August 2006 | 367.2 | +0.3% | +4.7% | George W. Bush | Republican |
| July 2006 | 366.1 | +0.25% | +4.63% | George W. Bush | Republican |
| June 2006 | 365.2 | +0.27% | +4.76% | George W. Bush | Republican |
| May 2006 | 364.2 | +0.41% | +5.02% | George W. Bush | Republican |
| April 2006 | 362.7 | +0.33% | +5.19% | George W. Bush | Republican |
| March 2006 | 361.5 | +0.44% | +4.93% | George W. Bush | Republican |
| February 2006 | 359.9 | +0.64% | +4.47% | George W. Bush | Republican |
| January 2006 | 357.6 | +0.53% | +4.38% | George W. Bush | Republican |
| December 2005 | 355.7 | +0.17% | +4.4% | George W. Bush | Republican |
| November 2005 | 355.1 | +0.54% | +4.29% | George W. Bush | Republican |
| October 2005 | 353.2 | +0.4% | +3.67% | George W. Bush | Republican |
| September 2005 | 351.8 | +0.31% | +3.56% | George W. Bush | Republican |
| August 2005 | 350.7 | +0.23% | +3.54% | George W. Bush | Republican |
| July 2005 | 349.9 | +0.37% | +3.4% | George W. Bush | Republican |
| June 2005 | 348.6 | +0.52% | +3.23% | George W. Bush | Republican |
| May 2005 | 346.8 | +0.58% | +2.97% | George W. Bush | Republican |
| April 2005 | 344.8 | +0.09% | +2.83% | George W. Bush | Republican |
| March 2005 | 344.5 | 0% | +3.27% | George W. Bush | Republican |
| February 2005 | 344.5 | +0.55% | +3.61% | George W. Bush | Republican |
| January 2005 | 342.6 | +0.56% | +3.69% | George W. Bush | Republican |
| December 2004 | 340.7 | +0.06% | +3.52% | George W. Bush | Republican |
| November 2004 | 340.5 | -0.06% | +3.78% | George W. Bush | Republican |
| October 2004 | 340.7 | +0.29% | +3.52% | George W. Bush | Republican |
| September 2004 | 339.7 | +0.3% | +3.32% | George W. Bush | Republican |
| August 2004 | 338.7 | +0.09% | +3.36% | George W. Bush | Republican |
| July 2004 | 338.4 | +0.21% | +3.55% | George W. Bush | Republican |
| June 2004 | 337.7 | +0.27% | +3.91% | George W. Bush | Republican |
| May 2004 | 336.8 | +0.45% | +3.76% | George W. Bush | Republican |
| April 2004 | 335.3 | +0.51% | +3.26% | George W. Bush | Republican |
| March 2004 | 333.6 | +0.33% | +2.8% | George W. Bush | Republican |
| February 2004 | 332.5 | +0.64% | +2.75% | George W. Bush | Republican |
| January 2004 | 330.4 | +0.4% | +2.23% | George W. Bush | Republican |
| December 2003 | 329.1 | +0.3% | +2.46% | George W. Bush | Republican |
| November 2003 | 328.1 | -0.3% | +2.21% | George W. Bush | Republican |
| October 2003 | 329.1 | +0.09% | +2.84% | George W. Bush | Republican |
| September 2003 | 328.8 | +0.34% | +3.1% | George W. Bush | Republican |
| August 2003 | 327.7 | +0.28% | +2.99% | George W. Bush | Republican |
| July 2003 | 326.8 | +0.55% | +2.7% | George W. Bush | Republican |
| June 2003 | 325.0 | +0.12% | +2.52% | George W. Bush | Republican |
| May 2003 | 324.6 | -0.03% | +2.95% | George W. Bush | Republican |
| April 2003 | 324.7 | +0.06% | +3.37% | George W. Bush | Republican |
| March 2003 | 324.5 | +0.28% | +3.74% | George W. Bush | Republican |
| February 2003 | 323.6 | +0.12% | +3.72% | George W. Bush | Republican |
| January 2003 | 323.2 | +0.62% | +4.56% | George W. Bush | Republican |
| December 2002 | 321.2 | +0.06% | +4.52% | George W. Bush | Republican |
| November 2002 | 321.0 | +0.31% | +4.8% | George W. Bush | Republican |
| October 2002 | 320.0 | +0.34% | +4.68% | George W. Bush | Republican |
| September 2002 | 318.9 | +0.22% | +4.63% | George W. Bush | Republican |
| August 2002 | 318.2 | 0% | +4.88% | George W. Bush | Republican |
| July 2002 | 318.2 | +0.38% | +5.26% | George W. Bush | Republican |
| June 2002 | 317.0 | +0.54% | +5.42% | George W. Bush | Republican |
| May 2002 | 315.3 | +0.38% | +5.63% | George W. Bush | Republican |
| April 2002 | 314.1 | +0.42% | +5.47% | George W. Bush | Republican |
| March 2002 | 312.8 | +0.26% | +5.5% | George W. Bush | Republican |
| February 2002 | 312.0 | +0.94% | +5.83% | George W. Bush | Republican |
| January 2002 | 309.1 | +0.59% | +5.82% | George W. Bush | Republican |
| December 2001 | 307.3 | +0.33% | +5.97% | George W. Bush | Republican |
| November 2001 | 306.3 | +0.2% | +6.17% | George W. Bush | Republican |
| October 2001 | 305.7 | +0.3% | +6.22% | George W. Bush | Republican |
| September 2001 | 304.8 | +0.46% | +6.09% | George W. Bush | Republican |
| August 2001 | 303.4 | +0.36% | +5.64% | George W. Bush | Republican |
| July 2001 | 302.3 | +0.53% | +5.7% | George W. Bush | Republican |
| June 2001 | 300.7 | +0.74% | +5.47% | George W. Bush | Republican |
| May 2001 | 298.5 | +0.24% | +5.11% | George W. Bush | Republican |
| April 2001 | 297.8 | +0.44% | +4.82% | George W. Bush | Republican |
| March 2001 | 296.5 | +0.58% | +4.88% | George W. Bush | Republican |
| February 2001 | 294.8 | +0.92% | +4.72% | George W. Bush | Republican |
| January 2001 | 292.1 | +0.72% | +3.99% | George W. Bush | Republican |
| December 2000 | 290.0 | +0.52% | +3.61% | Bill Clinton | Democrat |
| November 2000 | 288.5 | +0.24% | +3.44% | Bill Clinton | Democrat |
| October 2000 | 287.8 | +0.17% | +3.79% | Bill Clinton | Democrat |
| September 2000 | 287.3 | +0.03% | +3.94% | Bill Clinton | Democrat |
| August 2000 | 287.2 | +0.42% | +4.02% | Bill Clinton | Democrat |
| July 2000 | 286.0 | +0.32% | +4.23% | Bill Clinton | Democrat |
| June 2000 | 285.1 | +0.39% | +4.28% | Bill Clinton | Democrat |
| May 2000 | 284.0 | -0.04% | +4.49% | Bill Clinton | Democrat |
| April 2000 | 284.1 | +0.5% | +4.91% | Bill Clinton | Democrat |
| March 2000 | 282.7 | +0.43% | +5.25% | Bill Clinton | Democrat |
| February 2000 | 281.5 | +0.21% | +5.27% | Bill Clinton | Democrat |
| January 2000 | 280.9 | +0.36% | +5.8% | Bill Clinton | Democrat |
| December 1999 | 279.9 | +0.36% | +6.1% | Bill Clinton | Democrat |
| November 1999 | 278.9 | +0.58% | +6.13% | Bill Clinton | Democrat |
| October 1999 | 277.3 | +0.33% | +5.68% | Bill Clinton | Democrat |
| September 1999 | 276.4 | +0.11% | +5.58% | Bill Clinton | Democrat |
| August 1999 | 276.1 | +0.62% | +5.99% | Bill Clinton | Democrat |
| July 1999 | 274.4 | +0.37% | +5.78% | Bill Clinton | Democrat |
| June 1999 | 273.4 | +0.59% | +5.68% | Bill Clinton | Democrat |
| May 1999 | 271.8 | +0.37% | +5.27% | Bill Clinton | Democrat |
| April 1999 | 270.8 | +0.82% | +5.82% | Bill Clinton | Democrat |
| March 1999 | 268.6 | +0.45% | +5.79% | Bill Clinton | Democrat |
| February 1999 | 267.4 | +0.72% | +5.4% | Bill Clinton | Democrat |
| January 1999 | 265.5 | +0.64% | +5.19% | Bill Clinton | Democrat |
| December 1998 | 263.8 | +0.38% | +4.89% | Bill Clinton | Democrat |
| November 1998 | 262.8 | +0.15% | +5.25% | Bill Clinton | Democrat |
| October 1998 | 262.4 | +0.23% | +5.38% | Bill Clinton | Democrat |
| September 1998 | 261.8 | +0.5% | +5.01% | Bill Clinton | Democrat |
| August 1998 | 260.5 | +0.42% | +4.45% | Bill Clinton | Democrat |
| July 1998 | 259.4 | +0.27% | +3.76% | Bill Clinton | Democrat |
| June 1998 | 258.7 | +0.19% | +3.31% | Bill Clinton | Democrat |
| May 1998 | 258.2 | +0.9% | +3.32% | Bill Clinton | Democrat |
| April 1998 | 255.9 | +0.79% | +2.69% | Bill Clinton | Democrat |
| March 1998 | 253.9 | +0.08% | +2.13% | Bill Clinton | Democrat |
| February 1998 | 253.7 | +0.52% | +2.46% | Bill Clinton | Democrat |
| January 1998 | 252.4 | +0.36% | +2.39% | Bill Clinton | Democrat |
| December 1997 | 251.5 | +0.72% | +2.49% | Bill Clinton | Democrat |
| November 1997 | 249.7 | +0.28% | +1.88% | Bill Clinton | Democrat |
| October 1997 | 249.0 | -0.12% | +1.43% | Bill Clinton | Democrat |
| September 1997 | 249.3 | -0.04% | +2.21% | Bill Clinton | Democrat |
| August 1997 | 249.4 | -0.24% | +2.26% | Bill Clinton | Democrat |
| July 1997 | 250.0 | -0.16% | +2.75% | Bill Clinton | Democrat |
| June 1997 | 250.4 | +0.2% | +3.09% | Bill Clinton | Democrat |
| May 1997 | 249.9 | +0.28% | +3.22% | Bill Clinton | Democrat |
| April 1997 | 249.2 | +0.24% | +2.98% | Bill Clinton | Democrat |
| March 1997 | 248.6 | +0.4% | +3.11% | Bill Clinton | Democrat |
| February 1997 | 247.6 | +0.45% | +3.08% | Bill Clinton | Democrat |
| January 1997 | 246.5 | +0.45% | +3.18% | Bill Clinton | Democrat |
| December 1996 | 245.4 | +0.12% | +3.2% | Bill Clinton | Democrat |
| November 1996 | 245.1 | -0.16% | +3.11% | Bill Clinton | Democrat |
| October 1996 | 245.5 | +0.66% | +3.72% | Bill Clinton | Democrat |
| September 1996 | 243.9 | 0% | +3.48% | Bill Clinton | Democrat |
| August 1996 | 243.9 | +0.25% | +3.61% | Bill Clinton | Democrat |
| July 1996 | 243.3 | +0.16% | +3.53% | Bill Clinton | Democrat |
| June 1996 | 242.9 | +0.33% | +3.63% | Bill Clinton | Democrat |
| May 1996 | 242.1 | +0.04% | +3.51% | Bill Clinton | Democrat |
| April 1996 | 242.0 | +0.37% | +3.64% | Bill Clinton | Democrat |
| March 1996 | 241.1 | +0.37% | +3.21% | Bill Clinton | Democrat |
| February 1996 | 240.2 | +0.54% | +2.83% | Bill Clinton | Democrat |
| January 1996 | 238.9 | +0.46% | +2.53% | Bill Clinton | Democrat |
| December 1995 | 237.8 | +0.04% | +1.97% | Bill Clinton | Democrat |
| November 1995 | 237.7 | +0.42% | +2.06% | Bill Clinton | Democrat |
| October 1995 | 236.7 | +0.42% | +1.89% | Bill Clinton | Democrat |
| September 1995 | 235.7 | +0.13% | +1.9% | Bill Clinton | Democrat |
| August 1995 | 235.4 | +0.17% | +1.9% | Bill Clinton | Democrat |
| July 1995 | 235.0 | +0.26% | +1.86% | Bill Clinton | Democrat |
| June 1995 | 234.4 | +0.21% | +1.43% | Bill Clinton | Democrat |
| May 1995 | 233.9 | +0.17% | +1.39% | Bill Clinton | Democrat |
| April 1995 | 233.5 | -0.04% | +1.65% | Bill Clinton | Democrat |
| March 1995 | 233.6 | 0% | +1.96% | Bill Clinton | Democrat |
| February 1995 | 233.6 | +0.26% | +2.37% | Bill Clinton | Democrat |
| January 1995 | 233.0 | -0.09% | +2.82% | Bill Clinton | Democrat |
| December 1994 | 233.2 | +0.13% | +3.32% | Bill Clinton | Democrat |
| November 1994 | 232.9 | +0.26% | +3.42% | Bill Clinton | Democrat |
| October 1994 | 232.3 | +0.43% | +3.38% | Bill Clinton | Democrat |
| September 1994 | 231.3 | +0.13% | +3.07% | Bill Clinton | Democrat |
| August 1994 | 231.0 | +0.13% | +3.17% | Bill Clinton | Democrat |
| July 1994 | 230.7 | -0.17% | +3.31% | Bill Clinton | Democrat |
| June 1994 | 231.1 | +0.17% | +4.01% | Bill Clinton | Democrat |
| May 1994 | 230.7 | +0.44% | +4.15% | Bill Clinton | Democrat |
| April 1994 | 229.7 | +0.26% | +3.84% | Bill Clinton | Democrat |
| March 1994 | 229.1 | +0.39% | +2.83% | Bill Clinton | Democrat |
| February 1994 | 228.2 | +0.71% | +2.98% | Bill Clinton | Democrat |
| January 1994 | 226.6 | +0.4% | +3.09% | Bill Clinton | Democrat |
| December 1993 | 225.7 | +0.22% | +3.3% | Bill Clinton | Democrat |
| November 1993 | 225.2 | +0.22% | +3.3% | Bill Clinton | Democrat |
| October 1993 | 224.7 | +0.13% | +3.36% | Bill Clinton | Democrat |
| September 1993 | 224.4 | +0.22% | +3.79% | Bill Clinton | Democrat |
| August 1993 | 223.9 | +0.27% | +3.95% | Bill Clinton | Democrat |
| July 1993 | 223.3 | +0.5% | +3.76% | Bill Clinton | Democrat |
| June 1993 | 222.2 | +0.32% | +3.59% | Bill Clinton | Democrat |
| May 1993 | 221.5 | +0.14% | +3.26% | Bill Clinton | Democrat |
| April 1993 | 221.2 | -0.72% | +3.17% | Bill Clinton | Democrat |
| March 1993 | 222.8 | +0.54% | +4.65% | Bill Clinton | Democrat |
| February 1993 | 221.6 | +0.82% | +4.97% | Bill Clinton | Democrat |
| January 1993 | 219.8 | +0.59% | +5.32% | Bill Clinton | Democrat |
| December 1992 | 218.5 | +0.23% | +5.71% | George H. W. Bush | Republican |
| November 1992 | 218.0 | +0.28% | +6.03% | George H. W. Bush | Republican |
| October 1992 | 217.4 | +0.56% | +6.26% | George H. W. Bush | Republican |
| September 1992 | 216.2 | +0.37% | +5.88% | George H. W. Bush | Republican |
| August 1992 | 215.4 | +0.09% | +6.37% | George H. W. Bush | Republican |
| July 1992 | 215.2 | +0.33% | +7.28% | George H. W. Bush | Republican |
| June 1992 | 214.5 | 0% | +7.63% | George H. W. Bush | Republican |
| May 1992 | 214.5 | +0.05% | +8.5% | George H. W. Bush | Republican |
| April 1992 | 214.4 | +0.7% | +9.44% | George H. W. Bush | Republican |
| March 1992 | 212.9 | +0.85% | +9.18% | George H. W. Bush | Republican |
| February 1992 | 211.1 | +1.15% | +9.43% | George H. W. Bush | Republican |
| January 1992 | 208.7 | +0.97% | +9.32% | George H. W. Bush | Republican |
| December 1991 | 206.7 | +0.54% | +9.37% | George H. W. Bush | Republican |
| November 1991 | 205.6 | +0.49% | +10.06% | George H. W. Bush | Republican |
| October 1991 | 204.6 | +0.2% | +10.06% | George H. W. Bush | Republican |
| September 1991 | 204.2 | +0.84% | +10.62% | George H. W. Bush | Republican |
| August 1991 | 202.5 | +0.95% | +10.23% | George H. W. Bush | Republican |
| July 1991 | 200.6 | +0.65% | +9.56% | George H. W. Bush | Republican |
| June 1991 | 199.3 | +0.81% | +9.81% | George H. W. Bush | Republican |
| May 1991 | 197.7 | +0.92% | +9.77% | George H. W. Bush | Republican |
| April 1991 | 195.9 | +0.46% | +9.5% | George H. W. Bush | Republican |
| March 1991 | 195.0 | +1.09% | +9.67% | George H. W. Bush | Republican |
| February 1991 | 192.9 | +1.05% | +9.85% | George H. W. Bush | Republican |
| January 1991 | 190.9 | +1.01% | +10.22% | George H. W. Bush | Republican |
| December 1990 | 189.0 | +1.18% | +9.88% | George H. W. Bush | Republican |
| November 1990 | 186.8 | +0.48% | +9.5% | George H. W. Bush | Republican |
| October 1990 | 185.9 | +0.7% | +9.87% | George H. W. Bush | Republican |
| September 1990 | 184.6 | +0.49% | +9.62% | George H. W. Bush | Republican |
| August 1990 | 183.7 | +0.33% | +9.93% | George H. W. Bush | Republican |
| July 1990 | 183.1 | +0.88% | +10.23% | George H. W. Bush | Republican |
| June 1990 | 181.5 | +0.78% | +9.8% | George H. W. Bush | Republican |
| May 1990 | 180.1 | +0.67% | +9.88% | George H. W. Bush | Republican |
| April 1990 | 178.9 | +0.62% | +10.43% | George H. W. Bush | Republican |
| March 1990 | 177.8 | +1.25% | +10.57% | George H. W. Bush | Republican |
| February 1990 | 175.6 | +1.39% | +10.44% | George H. W. Bush | Republican |
| January 1990 | 173.2 | +0.7% | +9.34% | George H. W. Bush | Republican |
| December 1989 | 172.0 | +0.82% | +9.48% | George H. W. Bush | Republican |
| November 1989 | 170.6 | +0.83% | +9.29% | George H. W. Bush | Republican |
| October 1989 | 169.2 | +0.48% | +8.74% | George H. W. Bush | Republican |
| September 1989 | 168.4 | +0.78% | +9.21% | George H. W. Bush | Republican |
| August 1989 | 167.1 | +0.6% | +9% | George H. W. Bush | Republican |
| July 1989 | 166.1 | +0.48% | +8.7% | George H. W. Bush | Republican |
| June 1989 | 165.3 | +0.85% | +9.11% | George H. W. Bush | Republican |
| May 1989 | 163.9 | +1.17% | +8.61% | George H. W. Bush | Republican |
| April 1989 | 162.0 | +0.75% | +8.29% | George H. W. Bush | Republican |
| March 1989 | 160.8 | +1.13% | +8.21% | George H. W. Bush | Republican |
| February 1989 | 159.0 | +0.38% | +7.58% | George H. W. Bush | Republican |
| January 1989 | 158.4 | +0.83% | +7.98% | George H. W. Bush | Republican |
| December 1988 | 157.1 | +0.64% | +7.82% | Ronald Reagan | Republican |
| November 1988 | 156.1 | +0.32% | +7.66% | Ronald Reagan | Republican |
| October 1988 | 155.6 | +0.91% | +8.06% | Ronald Reagan | Republican |
| September 1988 | 154.2 | +0.59% | +7.83% | Ronald Reagan | Republican |
| August 1988 | 153.3 | +0.33% | +7.88% | Ronald Reagan | Republican |
| July 1988 | 152.8 | +0.86% | +8.06% | Ronald Reagan | Republican |
| June 1988 | 151.5 | +0.4% | +7.98% | Ronald Reagan | Republican |
| May 1988 | 150.9 | +0.87% | +7.94% | Ronald Reagan | Republican |
| April 1988 | 149.6 | +0.67% | +7.86% | Ronald Reagan | Republican |
| March 1988 | 148.6 | +0.54% | +7.84% | Ronald Reagan | Republican |
| February 1988 | 147.8 | +0.75% | +8.2% | Ronald Reagan | Republican |
| January 1988 | 146.7 | +0.69% | +8.03% | Ronald Reagan | Republican |
| December 1987 | 145.7 | +0.48% | +8.01% | Ronald Reagan | Republican |
| November 1987 | 145.0 | +0.69% | +8.29% | Ronald Reagan | Republican |
| October 1987 | 144.0 | +0.7% | +8.27% | Ronald Reagan | Republican |
| September 1987 | 143.0 | +0.63% | +7.92% | Ronald Reagan | Republican |
| August 1987 | 142.1 | +0.5% | +7.65% | Ronald Reagan | Republican |
| July 1987 | 141.4 | +0.78% | +7.53% | Ronald Reagan | Republican |
| June 1987 | 140.3 | +0.36% | +7.67% | Ronald Reagan | Republican |
| May 1987 | 139.8 | +0.79% | +8.04% | Ronald Reagan | Republican |
| April 1987 | 138.7 | +0.65% | +7.77% | Ronald Reagan | Republican |
| March 1987 | 137.8 | +0.88% | +7.74% | Ronald Reagan | Republican |
| February 1987 | 136.6 | +0.59% | +8.07% | Ronald Reagan | Republican |
| January 1987 | 135.8 | +0.67% | +9.08% | Ronald Reagan | Republican |
| December 1986 | 134.9 | +0.75% | +8.97% | Ronald Reagan | Republican |
| November 1986 | 133.9 | +0.68% | +8.42% | Ronald Reagan | Republican |
| October 1986 | 133.0 | +0.38% | +8.22% | Ronald Reagan | Republican |
| September 1986 | 132.5 | +0.38% | +8.52% | Ronald Reagan | Republican |
| August 1986 | 132.0 | +0.38% | +8.64% | Ronald Reagan | Republican |
| July 1986 | 131.5 | +0.92% | +8.68% | Ronald Reagan | Republican |
| June 1986 | 130.3 | +0.7% | +8.4% | Ronald Reagan | Republican |
| May 1986 | 129.4 | +0.54% | +8.56% | Ronald Reagan | Republican |
| April 1986 | 128.7 | +0.63% | +8.42% | Ronald Reagan | Republican |
| March 1986 | 127.9 | +1.19% | +8.85% | Ronald Reagan | Republican |
| February 1986 | 126.4 | +1.53% | +9.06% | Ronald Reagan | Republican |
| January 1986 | 124.5 | +0.57% | +8.36% | Ronald Reagan | Republican |
| December 1985 | 123.8 | +0.24% | +8.22% | Ronald Reagan | Republican |
| November 1985 | 123.5 | +0.49% | +8.91% | Ronald Reagan | Republican |
| October 1985 | 122.9 | +0.66% | +9.24% | Ronald Reagan | Republican |
| September 1985 | 122.1 | +0.49% | +9.61% | Ronald Reagan | Republican |
| August 1985 | 121.5 | +0.41% | +9.66% | Ronald Reagan | Republican |
| July 1985 | 121.0 | +0.67% | +10% | Ronald Reagan | Republican |
| June 1985 | 120.2 | +0.84% | +9.97% | Ronald Reagan | Republican |
| May 1985 | 119.2 | +0.42% | +9.26% | Ronald Reagan | Republican |
| April 1985 | 118.7 | +1.02% | +9.91% | Ronald Reagan | Republican |
| March 1985 | 117.5 | +1.38% | +10.02% | Ronald Reagan | Republican |
| February 1985 | 115.9 | +0.87% | +9.34% | Ronald Reagan | Republican |
| January 1985 | 114.9 | +0.44% | +9.74% | Ronald Reagan | Republican |
| December 1984 | 114.4 | +0.88% | +9.89% | Ronald Reagan | Republican |
| November 1984 | 113.4 | +0.8% | +9.67% | Ronald Reagan | Republican |
| October 1984 | 112.5 | +0.99% | +9.97% | Ronald Reagan | Republican |
| September 1984 | 111.4 | +0.54% | +9.75% | Ronald Reagan | Republican |
| August 1984 | 110.8 | +0.73% | +9.7% | Ronald Reagan | Republican |
| July 1984 | 110.0 | +0.64% | +9.56% | Ronald Reagan | Republican |
| June 1984 | 109.3 | +0.18% | +9.3% | Ronald Reagan | Republican |
| May 1984 | 109.1 | +1.02% | +9.43% | Ronald Reagan | Republican |
| April 1984 | 108.0 | +1.12% | +8.98% | Ronald Reagan | Republican |
| March 1984 | 106.8 | +0.75% | +9.31% | Ronald Reagan | Republican |
| February 1984 | 106.0 | +1.24% | +9.96% | Ronald Reagan | Republican |
| January 1984 | 104.7 | +0.58% | +9.52% | Ronald Reagan | Republican |
| December 1983 | 104.1 | +0.68% | +9.69% | Ronald Reagan | Republican |
| November 1983 | 103.4 | +1.08% | +9.88% | Ronald Reagan | Republican |
| October 1983 | 102.3 | +0.79% | +9.53% | Ronald Reagan | Republican |
| September 1983 | 101.5 | +0.5% | +9.97% | Ronald Reagan | Republican |
| August 1983 | 101.0 | +0.6% | +10.26% | Ronald Reagan | Republican |
| July 1983 | 100.4 | +0.4% | +10.94% | Ronald Reagan | Republican |
| June 1983 | 100.0 | +0.3% | +11.36% | Ronald Reagan | Republican |
| May 1983 | 99.7 | +0.61% | +11.9% | Ronald Reagan | Republican |
| April 1983 | 99.1 | +1.43% | +12.1% | Ronald Reagan | Republican |
| March 1983 | 97.7 | +1.35% | +12.17% | Ronald Reagan | Republican |
| February 1983 | 96.4 | +0.84% | +12.09% | Ronald Reagan | Republican |
| January 1983 | 95.6 | +0.74% | +12.21% | Ronald Reagan | Republican |
| December 1982 | 94.9 | +0.85% | +12.04% | Ronald Reagan | Republican |
| November 1982 | 94.1 | +0.75% | +11.89% | Ronald Reagan | Republican |
| October 1982 | 93.4 | +1.19% | +11.72% | Ronald Reagan | Republican |
| September 1982 | 92.3 | +0.76% | +11.74% | Ronald Reagan | Republican |
| August 1982 | 91.6 | +1.22% | +11.57% | Ronald Reagan | Republican |
| July 1982 | 90.5 | +0.78% | +11.32% | Ronald Reagan | Republican |
| June 1982 | 89.8 | +0.79% | +11.28% | Ronald Reagan | Republican |
| May 1982 | 89.1 | +0.79% | +11.65% | Ronald Reagan | Republican |
| April 1982 | 88.4 | +1.49% | +12.04% | Ronald Reagan | Republican |
| March 1982 | 87.1 | +1.28% | +11.67% | Ronald Reagan | Republican |
| February 1982 | 86.0 | +0.94% | +11.4% | Ronald Reagan | Republican |
| January 1982 | 85.2 | +0.59% | +11.81% | Ronald Reagan | Republican |
| December 1981 | 84.7 | +0.71% | +12.63% | Ronald Reagan | Republican |
| November 1981 | 84.1 | +0.6% | +12.58% | Ronald Reagan | Republican |
| October 1981 | 83.6 | +1.21% | +12.67% | Ronald Reagan | Republican |
| September 1981 | 82.6 | +0.61% | +12.08% | Ronald Reagan | Republican |
| August 1981 | 82.1 | +0.98% | +12.16% | Ronald Reagan | Republican |
| July 1981 | 81.3 | +0.74% | +11.68% | Ronald Reagan | Republican |
| June 1981 | 80.7 | +1.13% | +11.31% | Ronald Reagan | Republican |
| May 1981 | 79.8 | +1.14% | +10.99% | Ronald Reagan | Republican |
| April 1981 | 78.9 | +1.15% | +10.66% | Ronald Reagan | Republican |
| March 1981 | 78.0 | +1.04% | +10.48% | Ronald Reagan | Republican |
| February 1981 | 77.2 | +1.31% | +10.13% | Ronald Reagan | Republican |
| January 1981 | 76.2 | +1.33% | +10.12% | Ronald Reagan | Republican |
| December 1980 | 75.2 | +0.67% | +9.78% | Jimmy Carter | Democrat |
| November 1980 | 74.7 | +0.67% | +9.69% | Jimmy Carter | Democrat |
| October 1980 | 74.2 | +0.68% | +9.6% | Jimmy Carter | Democrat |
| September 1980 | 73.7 | +0.68% | +9.67% | Jimmy Carter | Democrat |
| August 1980 | 73.2 | +0.55% | +9.42% | Jimmy Carter | Democrat |
| July 1980 | 72.8 | +0.41% | +9.64% | Jimmy Carter | Democrat |
| June 1980 | 72.5 | +0.83% | +9.52% | Jimmy Carter | Democrat |
| May 1980 | 71.9 | +0.84% | +9.27% | Jimmy Carter | Democrat |
| April 1980 | 71.3 | +0.99% | +8.85% | Jimmy Carter | Democrat |
| March 1980 | 70.6 | +0.71% | +8.28% | Jimmy Carter | Democrat |
| February 1980 | 70.1 | +1.3% | +8.18% | Jimmy Carter | Democrat |
| January 1980 | 69.2 | +1.02% | +7.62% | Jimmy Carter | Democrat |
| December 1979 | 68.5 | +0.59% | +7.37% | Jimmy Carter | Democrat |
| November 1979 | 68.1 | +0.59% | +7.75% | Jimmy Carter | Democrat |
| October 1979 | 67.7 | +0.74% | +7.97% | Jimmy Carter | Democrat |
| September 1979 | 67.2 | +0.45% | +8.04% | Jimmy Carter | Democrat |
| August 1979 | 66.9 | +0.75% | +7.9% | Jimmy Carter | Democrat |
| July 1979 | 66.4 | +0.3% | +7.44% | Jimmy Carter | Democrat |
| June 1979 | 66.2 | +0.61% | +7.64% | Jimmy Carter | Democrat |
| May 1979 | 65.8 | +0.46% | +7.52% | Jimmy Carter | Democrat |
| April 1979 | 65.5 | +0.46% | +7.55% | Jimmy Carter | Democrat |
| March 1979 | 65.2 | +0.62% | +7.59% | Jimmy Carter | Democrat |
| February 1979 | 64.8 | +0.78% | +7.64% | Jimmy Carter | Democrat |
| January 1979 | 64.3 | +0.78% | +8.07% | Jimmy Carter | Democrat |
| December 1978 | 63.8 | +0.95% | +8.32% | Jimmy Carter | Democrat |
| November 1978 | 63.2 | +0.8% | +7.67% | Jimmy Carter | Democrat |
| October 1978 | 62.7 | +0.8% | +7.55% | Jimmy Carter | Democrat |
| September 1978 | 62.2 | +0.32% | +7.61% | Jimmy Carter | Democrat |
| August 1978 | 62.0 | +0.32% | +7.83% | Jimmy Carter | Democrat |
| July 1978 | 61.8 | +0.49% | +8.04% | Jimmy Carter | Democrat |
| June 1978 | 61.5 | +0.49% | +7.71% | Jimmy Carter | Democrat |
| May 1978 | 61.2 | +0.49% | +7.94% | Jimmy Carter | Democrat |
| April 1978 | 60.9 | +0.5% | +7.79% | Jimmy Carter | Democrat |
| March 1978 | 60.6 | +0.66% | +7.83% | Jimmy Carter | Democrat |
| February 1978 | 60.2 | +1.18% | +7.69% | Jimmy Carter | Democrat |
| January 1978 | 59.5 | +1.02% | +7.59% | Jimmy Carter | Democrat |
| December 1977 | 58.9 | +0.34% | +7.09% | Jimmy Carter | Democrat |
| November 1977 | 58.7 | +0.69% | +7.12% | Jimmy Carter | Democrat |
| October 1977 | 58.3 | +0.87% | +6.78% | Jimmy Carter | Democrat |
| September 1977 | 57.8 | +0.52% | +6.06% | Jimmy Carter | Democrat |
| August 1977 | 57.5 | +0.52% | +5.89% | Jimmy Carter | Democrat |
| July 1977 | 57.2 | +0.18% | +5.54% | Jimmy Carter | Democrat |
| June 1977 | 57.1 | +0.71% | +5.94% | Jimmy Carter | Democrat |
| May 1977 | 56.7 | +0.35% | +5.39% | Jimmy Carter | Democrat |
| April 1977 | 56.5 | +0.53% | +5.61% | Jimmy Carter | Democrat |
| March 1977 | 56.2 | +0.54% | +5.64% | Jimmy Carter | Democrat |
| February 1977 | 55.9 | +1.08% | +5.47% | Jimmy Carter | Democrat |
| January 1977 | 55.3 | +0.55% | +5.13% | Gerald Ford | Republican |
| December 1976 | 55.0 | +0.36% | +4.96% | Gerald Ford | Republican |
| November 1976 | 54.8 | +0.37% | +5.18% | Gerald Ford | Republican |
| October 1976 | 54.6 | +0.18% | +5.2% | Gerald Ford | Republican |
| September 1976 | 54.5 | +0.37% | +5.42% | Gerald Ford | Republican |
| August 1976 | 54.3 | +0.18% | +5.44% | Gerald Ford | Republican |
| July 1976 | 54.2 | +0.56% | +5.65% | Gerald Ford | Republican |
| June 1976 | 53.9 | +0.19% | +5.69% | Gerald Ford | Republican |
| May 1976 | 53.8 | +0.56% | +5.91% | Gerald Ford | Republican |
| April 1976 | 53.5 | +0.56% | +5.73% | Gerald Ford | Republican |
| March 1976 | 53.2 | +0.38% | +5.56% | Gerald Ford | Republican |
| February 1976 | 53.0 | +0.76% | +5.37% | Gerald Ford | Republican |
| January 1976 | 52.6 | +0.38% | +5.2% | Gerald Ford | Republican |
| December 1975 | 52.4 | +0.58% | +5.65% | Gerald Ford | Republican |
| November 1975 | 52.1 | +0.39% | +5.68% | Gerald Ford | Republican |
| October 1975 | 51.9 | +0.39% | +5.92% | Gerald Ford | Republican |
| September 1975 | 51.7 | +0.39% | +6.16% | Gerald Ford | Republican |
| August 1975 | 51.5 | +0.39% | +6.19% | Gerald Ford | Republican |
| July 1975 | 51.3 | +0.59% | +6.65% | Gerald Ford | Republican |
| June 1975 | 51.0 | +0.39% | +6.69% | Gerald Ford | Republican |
| May 1975 | 50.8 | +0.4% | +6.72% | Gerald Ford | Republican |
| April 1975 | 50.6 | +0.4% | +6.3% | Gerald Ford | Republican |
| March 1975 | 50.4 | +0.2% | +6.11% | Gerald Ford | Republican |
| February 1975 | 50.3 | +0.6% | +6.12% | Gerald Ford | Republican |
| January 1975 | 50.0 | +0.81% | +5.71% | Gerald Ford | Republican |
| December 1974 | 49.6 | +0.61% | +5.31% | Gerald Ford | Republican |
| November 1974 | 49.3 | +0.61% | +4.67% | Gerald Ford | Republican |
| October 1974 | 49.0 | +0.62% | +4.03% | Gerald Ford | Republican |
| September 1974 | 48.7 | +0.41% | +3.4% | Gerald Ford | Republican |
| August 1974 | 48.5 | +0.83% | +2.97% | Gerald Ford | Republican |
| July 1974 | 48.1 | +0.63% | +2.34% | Richard Nixon | Republican |
| June 1974 | 47.8 | +0.42% | +1.7% | Richard Nixon | Republican |
| May 1974 | 47.6 | 0% | +1.28% | Richard Nixon | Republican |
| April 1974 | 47.6 | +0.21% | +1.28% | Richard Nixon | Republican |
| March 1974 | 47.5 | +0.21% | +1.28% | Richard Nixon | Republican |
| February 1974 | 47.4 | +0.21% | +0.42% | Richard Nixon | Republican |
| January 1974 | 47.3 | +0.42% | +0.42% | Richard Nixon | Republican |
| December 1973 | 47.1 | 0% | 0% | Richard Nixon | Republican |
| November 1973 | 47.1 | 0% | 0% | Richard Nixon | Republican |
| October 1973 | 47.1 | 0% | 0% | Richard Nixon | Republican |
| September 1973 | 47.1 | 0% | 0% | Richard Nixon | Republican |
| August 1973 | 47.1 | +0.21% | -0.21% | Richard Nixon | Republican |
| July 1973 | 47.0 | 0% | -0.42% | Richard Nixon | Republican |
| June 1973 | 47.0 | 0% | -0.42% | Richard Nixon | Republican |
| May 1973 | 47.0 | 0% | -0.21% | Richard Nixon | Republican |
| April 1973 | 47.0 | +0.21% | -0.42% | Richard Nixon | Republican |
| March 1973 | 46.9 | -0.64% | -0.85% | Richard Nixon | Republican |
| February 1973 | 47.2 | +0.21% | -0.42% | Richard Nixon | Republican |
| January 1973 | 47.1 | 0% | -0.84% | Richard Nixon | Republican |
| December 1972 | 47.1 | 0% | -1.05% | Richard Nixon | Republican |
| November 1972 | 47.1 | 0% | -1.05% | Richard Nixon | Republican |
| October 1972 | 47.1 | 0% | -1.05% | Richard Nixon | Republican |
| September 1972 | 47.1 | -0.21% | -1.26% | Richard Nixon | Republican |
| August 1972 | 47.2 | 0% | -0.84% | Richard Nixon | Republican |
| July 1972 | 47.2 | 0% | -0.84% | Richard Nixon | Republican |
| June 1972 | 47.2 | +0.21% | -0.42% | Richard Nixon | Republican |
| May 1972 | 47.1 | -0.21% | -0.42% | Richard Nixon | Republican |
| April 1972 | 47.2 | -0.21% | +0.21% | Richard Nixon | Republican |
| March 1972 | 47.3 | -0.21% | +0.42% | Richard Nixon | Republican |
| February 1972 | 47.4 | -0.21% | +0.42% | Richard Nixon | Republican |
| January 1972 | 47.5 | -0.21% | +0.85% | Richard Nixon | Republican |
| December 1971 | 47.6 | 0% | +1.49% | Richard Nixon | Republican |
| November 1971 | 47.6 | 0% | +1.28% | Richard Nixon | Republican |
| October 1971 | 47.6 | -0.21% | +0.63% | Richard Nixon | Republican |
| September 1971 | 47.7 | +0.21% | 0% | Richard Nixon | Republican |
| August 1971 | 47.6 | 0% | -0.42% | Richard Nixon | Republican |
| July 1971 | 47.6 | +0.42% | -0.21% | Richard Nixon | Republican |
| June 1971 | 47.4 | +0.21% | -0.63% | Richard Nixon | Republican |
| May 1971 | 47.3 | +0.42% | -0.63% | Richard Nixon | Republican |
| April 1971 | 47.1 | 0% | -0.84% | Richard Nixon | Republican |
| March 1971 | 47.1 | -0.21% | -0.21% | Richard Nixon | Republican |
| February 1971 | 47.2 | +0.21% | 0% | Richard Nixon | Republican |
| January 1971 | 47.1 | +0.43% | +0.21% | Richard Nixon | Republican |
| December 1970 | 46.9 | -0.21% | 0% | Richard Nixon | Republican |
| November 1970 | 47.0 | -0.63% | +0.43% | Richard Nixon | Republican |
| October 1970 | 47.3 | -0.84% | +1.07% | Richard Nixon | Republican |
| September 1970 | 47.7 | -0.21% | +2.14% | Richard Nixon | Republican |
| August 1970 | 47.8 | +0.21% | +2.36% | Richard Nixon | Republican |
| July 1970 | 47.7 | 0% | +2.36% | Richard Nixon | Republican |
| June 1970 | 47.7 | +0.21% | +2.36% | Richard Nixon | Republican |
| May 1970 | 47.6 | +0.21% | +2.15% | Richard Nixon | Republican |
| April 1970 | 47.5 | +0.64% | +2.37% | Richard Nixon | Republican |
| March 1970 | 47.2 | 0% | +1.72% | Richard Nixon | Republican |
| February 1970 | 47.2 | +0.43% | +1.94% | Richard Nixon | Republican |
| January 1970 | 47.0 | +0.21% | +1.73% | Richard Nixon | Republican |
| December 1969 | 46.9 | +0.21% | +1.74% | Richard Nixon | Republican |
| November 1969 | 46.8 | 0% | — | Richard Nixon | Republican |
| October 1969 | 46.8 | +0.21% | — | Richard Nixon | Republican |
| September 1969 | 46.7 | 0% | +1.97% | Richard Nixon | Republican |
| August 1969 | 46.7 | +0.21% | — | Richard Nixon | Republican |
| July 1969 | 46.6 | 0% | — | Richard Nixon | Republican |
| June 1969 | 46.6 | 0% | +1.53% | Richard Nixon | Republican |
| May 1969 | 46.6 | +0.43% | — | Richard Nixon | Republican |
| April 1969 | 46.4 | 0% | — | Richard Nixon | Republican |
| March 1969 | 46.4 | +0.22% | +0.43% | Richard Nixon | Republican |
| February 1969 | 46.3 | +0.22% | — | Richard Nixon | Republican |
| January 1969 | 46.2 | +0.22% | — | Richard Nixon | Republican |
| December 1968 | 46.1 | — | -0.86% | Lyndon B. Johnson | Democrat |
| September 1968 | 45.8 | — | -1.72% | Lyndon B. Johnson | Democrat |
| June 1968 | 45.9 | — | -1.71% | Lyndon B. Johnson | Democrat |
| March 1968 | 46.2 | — | -1.91% | Lyndon B. Johnson | Democrat |
| December 1967 | 46.5 | — | -2.11% | Lyndon B. Johnson | Democrat |
| September 1967 | 46.6 | — | -2.1% | Lyndon B. Johnson | Democrat |
| June 1967 | 46.7 | — | -1.89% | Lyndon B. Johnson | Democrat |
| March 1967 | 47.1 | — | -1.46% | Lyndon B. Johnson | Democrat |
| December 1966 | 47.5 | — | -0.42% | Lyndon B. Johnson | Democrat |
| September 1966 | 47.6 | — | -0.21% | Lyndon B. Johnson | Democrat |
| June 1966 | 47.6 | — | -0.42% | Lyndon B. Johnson | Democrat |
| March 1966 | 47.8 | — | — | Lyndon B. Johnson | Democrat |
| December 1965 | 47.7 | — | -0.62% | Lyndon B. Johnson | Democrat |
| September 1965 | 47.7 | — | — | Lyndon B. Johnson | Democrat |
| June 1965 | 47.8 | — | -1.24% | Lyndon B. Johnson | Democrat |
| December 1964 | 48.0 | — | -1.23% | Lyndon B. Johnson | Democrat |
| June 1964 | 48.4 | — | -1.22% | Lyndon B. Johnson | Democrat |
| December 1963 | 48.6 | — | -1.42% | Lyndon B. Johnson | Democrat |
| September 1963 | 48.7 | — | -1.22% | John F. Kennedy | Democrat |
| June 1963 | 49.0 | — | -2.78% | John F. Kennedy | Democrat |
| March 1963 | 49.1 | — | -3.16% | John F. Kennedy | Democrat |
| December 1962 | 49.3 | — | -4.09% | John F. Kennedy | Democrat |
| September 1962 | 49.3 | — | -4.27% | John F. Kennedy | Democrat |
| June 1962 | 50.4 | — | -3.82% | John F. Kennedy | Democrat |
| March 1962 | 50.7 | — | -3.8% | John F. Kennedy | Democrat |
| December 1961 | 51.4 | — | -3.2% | John F. Kennedy | Democrat |
| September 1961 | 51.5 | — | -4.28% | John F. Kennedy | Democrat |
| June 1961 | 52.4 | — | -3.68% | John F. Kennedy | Democrat |
| March 1961 | 52.7 | — | -2.77% | John F. Kennedy | Democrat |
| December 1960 | 53.1 | — | -2.21% | Dwight D. Eisenhower | Republican |
| September 1960 | 53.8 | — | -1.1% | Dwight D. Eisenhower | Republican |
| June 1960 | 54.4 | — | 0% | Dwight D. Eisenhower | Republican |
| March 1960 | 54.2 | — | +0.37% | Dwight D. Eisenhower | Republican |
| December 1959 | 54.3 | — | +1.69% | Dwight D. Eisenhower | Republican |
| September 1959 | 54.4 | — | +2.26% | Dwight D. Eisenhower | Republican |
| June 1959 | 54.4 | — | +2.64% | Dwight D. Eisenhower | Republican |
| March 1959 | 54.0 | — | +2.47% | Dwight D. Eisenhower | Republican |
| December 1958 | 53.4 | — | +3.09% | Dwight D. Eisenhower | Republican |
| September 1958 | 53.2 | — | +4.52% | Dwight D. Eisenhower | Republican |
| June 1958 | 53.0 | — | +4.54% | Dwight D. Eisenhower | Republican |
| March 1958 | 52.7 | — | +5.61% | Dwight D. Eisenhower | Republican |
| December 1957 | 51.8 | — | +4.65% | Dwight D. Eisenhower | Republican |
| September 1957 | 50.9 | — | +3.04% | Dwight D. Eisenhower | Republican |
| June 1957 | 50.7 | — | +4.32% | Dwight D. Eisenhower | Republican |
| March 1957 | 49.9 | — | +2.04% | Dwight D. Eisenhower | Republican |
| December 1956 | 49.5 | — | +1.43% | Dwight D. Eisenhower | Republican |
| September 1956 | 49.4 | — | +3.35% | Dwight D. Eisenhower | Republican |
| June 1956 | 48.6 | — | +2.32% | Dwight D. Eisenhower | Republican |
| March 1956 | 48.9 | — | +4.71% | Dwight D. Eisenhower | Republican |
| December 1955 | 48.8 | — | +3.39% | Dwight D. Eisenhower | Republican |
| September 1955 | 47.8 | — | +1.49% | Dwight D. Eisenhower | Republican |
| June 1955 | 47.5 | — | +1.06% | Dwight D. Eisenhower | Republican |
| March 1955 | 46.7 | — | 0% | Dwight D. Eisenhower | Republican |
| December 1954 | 47.2 | — | +1.94% | Dwight D. Eisenhower | Republican |
| September 1954 | 47.1 | — | +2.84% | Dwight D. Eisenhower | Republican |
| June 1954 | 47.0 | — | +2.17% | Dwight D. Eisenhower | Republican |
| March 1954 | 46.7 | — | +1.52% | Dwight D. Eisenhower | Republican |
| December 1953 | 46.3 | — | — | Dwight D. Eisenhower | Republican |
| September 1953 | 45.8 | — | — | Dwight D. Eisenhower | Republican |
| June 1953 | 46.0 | — | — | Dwight D. Eisenhower | Republican |
| March 1953 | 46.0 | — | — | Dwight D. Eisenhower | Republican |