| Year | Ballpark | Attendance | PFr | PFhr |
| 1961 | | 3,202,921 | | |
| 1962 | RFK Stadium | 3,186,535 | 0.97 | 0.99 |
| 1963 | RFK Stadium | 3,084,308 | 0.98 | 0.97 |
| 1964 | RFK Stadium | 3,033,359 | 0.93 | 0.91 |
| 1965 | RFK Stadium | 3,214,584 | 0.97 | 0.91 |
| 1966 | RFK Stadium | 3,111,278 | 0.96 | 0.97 |
| 1967 | RFK Stadium | 2,813,651 | 1.04 | 0.99 |
| 1968 | RFK Stadium | 3,157,431 | 0.96 | 0.96 |
| 1969 | RFK Stadium | 3,134,805 | 0.98 | 1.00 |
| 1970 | RFK Stadium | 2,839,078 | 0.92 | 0.92 |
| 1971 | RFK Stadium | 3,070,507 | 0.95 | 0.90 |
| 1972 | RFK Stadium | 2,970,127 | 0.93 | 0.89 |
| 1973 | RFK Stadium | 3,191,851 | 0.93 | 0.91 |
| 1974 | RFK Stadium | 3,092,510 | 0.92 | 0.89 |
| 1975 | RFK Stadium | 3,099,015 | 0.96 | 0.93 |
| 1976 | RFK Stadium | 2,986,970 | 0.97 | 0.99 |
| 1977 | RFK Stadium | 2,972,576 | 0.99 | 1.04 |
| 1978 | RFK Stadium | 3,143,650 | 0.97 | 0.93 |
| 1979 | RFK Stadium | 3,169,296 | 0.97 | 0.96 |
| 1980 | RFK Stadium | 3,195,647 | 0.98 | 0.95 |
| 1981 | RFK Stadium | 3,218,906 | 1.00 | 1.05 |
| 1982 | RFK Stadium | 3,220,040 | 0.96 | 1.02 |
| 1983 | RFK Stadium | 3,149,005 | 1.03 | 1.06 |
| 1984 | RFK Stadium | 3,217,345 | 0.98 | 0.99 |
| 1985 | RFK Stadium | 3,214,594 | 1.00 | 1.05 |
| 1986 | | 3,167,658 | | |
| 1987 | RFK Stadium | 3,204,013 | 1.02 | 0.97 |
| 1988 | RFK Stadium | 3,214,003 | 0.99 | 0.96 |
| 1989 | RFK Stadium | 3,182,830 | 0.93 | 0.91 |
| 1990 | RFK Stadium | 3,017,680 | 0.95 | 0.95 |
| 1991 | RFK Stadium | 3,017,270 | 1.00 | 1.04 |
| 1992 | RFK Stadium | 3,000,031 | 1.00 | 0.99 |
| 1993 | RFK Stadium | 2,858,746 | 0.99 | 0.99 |
| 1994 | RFK Stadium | 2,708,509 | 0.97 | 0.99 |
| 1995 | RFK Stadium | 2,870,415 | 0.96 | 0.99 |
| 1996 | RFK Stadium | 2,647,938 | 0.98 | 1.03 |
| 1997 | RFK Stadium | 3,001,316 | 1.00 | 1.11 |
| 1998 | RFK Stadium | 3,147,065 | 0.94 | 1.03 |
| 1999 | RFK Stadium | 2,715,398 | 0.98 | 0.97 |
| 2000 | RFK Stadium | 2,582,527 | 0.97 | 1.06 |
| | 0.97 | 0.98 |
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