单位:亿美元
年度 | 金额 |
1950 | 1.57 |
1951 | 0.45 |
1952 | 1.08 |
1953 | 0.90 |
1954 | 0.88 |
1955 | 1.80 |
1956 | 1.17 |
1957 | 1.23 |
1958 | 0.70 |
1959 | 1.05 |
1960 | 0.46 |
1961 | 0.89 |
1962 | 0.81 |
1963 | 1.19 |
1964 | 1.66 |
1965 | 1.05 |
1966 | 2.11 |
1967 | 2.15 |
1968 | 2.46 |
1969 | 4.83 |
1970 | 0.88 |
1971 | 0.37 |
1972 | 2.36 |
1973 | -0.81 |
1974 | 0.00 |
1975 | 1.83 |
1976 | 5.81 |
1977 | 9.52 |
1978 | 1.67 |
1979 | 8.40 |
1980 | -12.96 |
1981 | 27.08 |
1982 | 69.86 |
1983 | 89.01 |
1984 | 82.20 |
1985 | 26.44 |
1986 | 20.72 |
1987 | 29.23 |
1988 | 33.72 |
1989 | 55.50 |
1990 | 110.93 |
1991 | 217.12 |
1992 | 194.43 |
1993 | 211.99 |
1994 | 516.20 |
1995 | 735.97 |
1996 | 1050.29 |
1997 | 1398.90 |
1998 | 1449.59 |
1999 | 1546.75 |
2000 | 1655.74 |
2001 | 2121.65 |
2002 | 2864.07 |
2003 | 4032.51 |
2004 | 6099.32 |
2005 | 8188.72 |
2006 | 10663.44 |
2007 | 15282.49 |
2008 | 19460.30 |
2009 | 23991.52 |
2010 | 28473.38 |
2011 | 31811.48 |