年份 | 美国 |
---|---|
2023 | - |
2022 | - |
2021 | 1.30856 |
2020 | 2.21688 |
2019 | 3.35441 |
2018 | 1.2279 |
2017 | -0.0909228 |
2016 | 1.86069 |
2015 | 1.58756 |
2014 | -0.773398 |
2013 | -1.8883 |
2012 | -1.45693 |
2011 | -3.06946 |
2010 | 0.0110513 |
2009 | 4.26158 |
2008 | 2.45054 |
2007 | 1.6018 |
2006 | 1.22005 |
2005 | 0.837528 |
2004 | 1.53886 |
2003 | 1.71417 |
2002 | 3.83684 |
2001 | 3.55821 |
2000 | 1.53664 |
1999 | 2.76455 |
1998 | 1.8726 |
1997 | 1.83778 |
1996 | 0.449852 |
1995 | 0.271204 |
1994 | 0.516587 |
1993 | -0.0553709 |
1992 | 0.650229 |
1991 | 1.74454 |
1990 | 2.74366 |
1989 | 3.07529 |
1988 | 1.98512 |
1987 | 1.95756 |
1986 | 4.58849 |
1985 | 4.80876 |
1984 | 1.49913 |
1983 | 3.02472 |
1982 | 2.33015 |
1981 | 1.60193 |
1980 | 1.49819 |
1979 | 0.765306 |
1978 | 1.77884 |
1977 | 1.77619 |
1976 | 0.00131154 |
1975 | 2.4406 |
1974 | 2.15992 |
1973 | -0.856494 |
1972 | 0.362383 |
1971 | 0.0848252 |
1970 | - |
1969 | - |
1968 | - |
1967 | - |
1966 | - |
1965 | - |
1964 | - |
1963 | - |
1962 | - |
1961 | - |
1960 | - |