年份 | 美国 |
---|---|
2023 | - |
2022 | - |
2021 | - |
2020 | 48.0892 |
2019 | - |
2018 | 45.1679 |
2017 | - |
2016 | 43.5119 |
2015 | 42.3375 |
2014 | 41.8897 |
2013 | 41.5047 |
2012 | 40.6632 |
2011 | 39.9449 |
2010 | 39.1374 |
2009 | 38.6208 |
2008 | 38.2589 |
2007 | - |
2006 | 37.4542 |
2005 | 36.2299 |
2004 | 37.5299 |
2003 | - |
2002 | - |
2001 | - |
2000 | - |
1999 | - |
1998 | - |
1997 | - |
1996 | - |
1995 | - |
1994 | 46.5411 |
1993 | - |
1992 | - |
1991 | - |
1990 | 45.2398 |
1989 | - |
1988 | - |
1987 | - |
1986 | - |
1985 | - |
1984 | - |
1983 | - |
1982 | - |
1981 | 32.1531 |
1980 | 31.8913 |
1979 | 31.1 |
1978 | - |
1977 | - |
1976 | - |
1975 | 26.3 |
1974 | - |
1973 | - |
1972 | - |
1971 | - |
1970 | 21.2482 |
1969 | - |
1968 | - |
1967 | - |
1966 | - |
1965 | - |
1964 | - |
1963 | - |
1962 | - |
1961 | - |
1960 | - |