年份 | 美国 |
---|---|
2023 | - |
2022 | - |
2021 | 85.2376 |
2020 | 86.4501 |
2019 | 87.7998 |
2018 | 87.7357 |
2017 | 87.5552 |
2016 | 87.5474 |
2015 | 87.7551 |
2014 | 87.8868 |
2013 | 88.0417 |
2012 | 88.0813 |
2011 | 88.0285 |
2010 | 88.0664 |
2009 | 87.7544 |
2008 | 87.6493 |
2007 | 87.5469 |
2006 | 87.2715 |
2005 | 87.0998 |
2004 | 87.0536 |
2003 | 86.6991 |
2002 | 86.6593 |
2001 | 86.5467 |
2000 | 86.5156 |
1999 | 86.4085 |
1998 | 86.3939 |
1997 | 86.1221 |
1996 | 85.8616 |
1995 | 85.5942 |
1994 | 85.5422 |
1993 | 85.3884 |
1992 | 85.5518 |
1991 | 85.2667 |
1990 | 85.1451 |
1989 | 84.859 |
1988 | 84.554 |
1987 | 84.5836 |
1986 | 84.4712 |
1985 | 84.3355 |
1984 | 84.2674 |
1983 | 84.1344 |
1982 | 84.0674 |
1981 | 83.7011 |
1980 | 83.4124 |
1979 | 83.4836 |
1978 | 82.9008 |
1977 | 82.6652 |
1976 | 82.2644 |
1975 | 81.939 |
1974 | 81.2697 |
1973 | 80.5773 |
1972 | 80.3556 |
1971 | 80.0638 |
1970 | 79.6218 |
1969 | 79.4853 |
1968 | 79.0302 |
1967 | 79.4489 |
1966 | 79.0844 |
1965 | 78.9058 |
1964 | 78.6788 |
1963 | 78.3985 |
1962 | 78.6145 |
1961 | 78.8423 |
1960 | 78.2174 |