| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 65.96 |
| 8 | 2014 | 65.08 |
| 9 | 2013 | 66.15 |
| 10 | 2012 | 64.86 |
| 11 | 2011 | 65.60 |
| 12 | 2010 | 67.39 |
| 13 | 2009 | 68.31 |
| 14 | 2008 | 70.26 |
| 15 | 2007 | 64.75 |
| 16 | 1995 | 20.49 |
| 17 | 1994 | 18.82 |
| 18 | 1993 | 18.20 |
| 19 | 1992 | 16.99 |
| 20 | 1991 | 16.17 |
| 21 | 1990 | 16.05 |
| 22 | 1989 | 15.60 |
| 23 | 1988 | 15.53 |
| 24 | 1987 | 13.90 |
| 25 | 1986 | 12.15 |
| 26 | 1985 | 10.17 |
| 27 | 1984 | 9.31 |
| 28 | 1983 | 8.29 |
| 29 | 1982 | 7.60 |
| 30 | 1981 | 7.77 |
| 31 | 1980 | 6.99 |
| 32 | 1979 | 5.76 |
| 33 | 1978 | 5.19 |
| 34 | 1977 | 4.78 |
| 35 | 1976 | 4.41 |
| 36 | 1975 | 4.01 |
| 37 | 1974 | 3.46 |
| 38 | 1973 | 2.92 |
| 39 | 1972 | 2.46 |
| 40 | 1971 | 2.19 |
| 41 | 1970 | 1.96 |
| 42 | 1969 | 1.80 |
| 43 | 1968 | 1.72 |
| 44 | 1967 | 1.67 |
| 45 | 1966 | 1.44 |
| 46 | 1965 | 1.23 |
| 47 | 1964 | 1.16 |
| 48 | 1963 | 1.03 |
| 49 | 1962 | 1.01 |
