年份 | 美国 |
---|---|
2023 | - |
2022 | - |
2021 | 84.8551 |
2020 | 87.5677 |
2019 | 87.8887 |
2018 | 88.2992 |
2017 | 88.1674 |
2016 | 88.8351 |
2015 | 88.8894 |
2014 | 88.6269 |
2013 | 88.7264 |
2012 | - |
2011 | - |
2010 | - |
2009 | - |
2008 | - |
2007 | - |
2006 | - |
2005 | 80.6348 |
2004 | - |
2003 | - |
2002 | - |
2001 | - |
2000 | - |
1999 | 71.1524 |
1998 | 70.5077 |
1997 | - |
1996 | 78.8334 |
1995 | 79.4405 |
1994 | 78.3683 |
1993 | 77.5162 |
1992 | 75.4626 |
1991 | 70.9646 |
1990 | 69.6768 |
1989 | 67.6751 |
1988 | 66.2651 |
1987 | 63.9273 |
1986 | 61.3857 |
1985 | 60.1063 |
1984 | 59.8563 |
1983 | 58.8377 |
1982 | 58.3784 |
1981 | 56.9812 |
1980 | 54.6654 |
1979 | 53.7413 |
1978 | 54.5648 |
1977 | 53.9238 |
1976 | 55.7511 |
1975 | 52.3714 |
1974 | 48.7368 |
1973 | 49.8313 |
1972 | 50.6804 |
1971 | 49.9503 |
1970 | - |
1969 | - |
1968 | - |
1967 | - |
1966 | - |
1965 | - |
1964 | - |
1963 | - |
1962 | - |
1961 | - |
1960 | - |