| 年份 | 美国 |
|---|---|
| 2023 | - |
| 2022 | - |
| 2021 | 95.2502 |
| 2020 | 96.4608 |
| 2019 | - |
| 2018 | 96.0294 |
| 2017 | 94.9176 |
| 2016 | 95.5852 |
| 2015 | 95.335 |
| 2014 | 95.2635 |
| 2013 | 95.2045 |
| 2012 | 94.9845 |
| 2011 | 94.9027 |
| 2010 | 94.7695 |
| 2009 | 94.5352 |
| 2008 | 94.4855 |
| 2007 | - |
| 2006 | 94.1919 |
| 2005 | 93.6959 |
| 2004 | 94.0394 |
| 2003 | - |
| 2002 | - |
| 2001 | - |
| 2000 | - |
| 1999 | - |
| 1998 | - |
| 1997 | - |
| 1996 | - |
| 1995 | - |
| 1994 | 91.179 |
| 1993 | - |
| 1992 | - |
| 1991 | - |
| 1990 | 89.6205 |
| 1989 | - |
| 1988 | - |
| 1987 | - |
| 1986 | - |
| 1985 | - |
| 1984 | - |
| 1983 | - |
| 1982 | - |
| 1981 | 92.9938 |
| 1980 | 92.702 |
| 1979 | 92.7238 |
| 1978 | - |
| 1977 | - |
| 1976 | - |
| 1975 | 91.7852 |
| 1974 | - |
| 1973 | - |
| 1972 | - |
| 1971 | - |
| 1970 | 65.6809 |
| 1969 | - |
| 1968 | - |
| 1967 | - |
| 1966 | - |
| 1965 | - |
| 1964 | - |
| 1963 | - |
| 1962 | - |
| 1961 | - |
| 1960 | - |