| Dwight D. Eisenhower |
1953,1954,1955,1956,1957,1958,1959,1960 |
5.11 |
2.62 |
| John F. Kennedy |
1961,1962,1963 |
5.97 |
2.61 |
| Lyndon B. Johnson |
1964,1965,1966,1967,1968 |
4.17 |
4.51 |
| Richard Nixon |
1969,1970,1971,1972,1973,1974 |
5.09 |
7.29 |
| Gerald Ford |
1975,1976 |
8.09 |
5.44 |
| Jimmy Carter |
1977,1978,1979,1980 |
6.54 |
9.51 |
| Ronald Reagan |
1981,1982,1983,1984,1985,1986,1987,1988 |
7.54 |
9.64 |
| George H. W. Bush |
1989,1990,1991,1992 |
6.31 |
6.63 |
| Bill Clinton |
1993,1994,1995,1996,1997,1998,1999,2000 |
5.21 |
5.05 |
| George W. Bush |
2001,2002,2003,2004,2005,2006,2007,2008 |
5.27 |
2.90 |
| Barack Obama |
2009,2010,2011,2012,2013,2014,2015,2016 |
7.45 |
0.16 |
| Donald Trump |
2017,2018,2019,2020 |
5.01 |
1.32 |
| Joe Biden |
2021,2022,2023,2024 |
4.13 |
2.99 |
| Donald Trump |
2025 |
4.20 |
4.21 |