| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 195321.92 |
| 8 | 2013 | 189502.19 |
| 9 | 2012 | 177573.18 |
| 10 | 2011 | 181916.46 |
| 11 | 2010 | 135946.22 |
| 12 | 2009 | 93300.95 |
| 13 | 1994 | 71703.64 |
| 14 | 1993 | 56313.68 |
| 15 | 1992 | 66017.56 |
| 16 | 1991 | 62667.93 |
| 17 | 1990 | 49500.05 |
| 18 | 1989 | 45657.46 |
| 19 | 1988 | 41045.85 |
| 20 | 1987 | 34944.86 |
| 21 | 1986 | 31566.08 |
| 22 | 1985 | 46180.82 |
| 23 | 1984 | 35713.99 |
| 24 | 1983 | 43042.61 |
| 25 | 1982 | 43690.11 |
| 26 | 1981 | 53528.73 |
| 27 | 1980 | 39408.61 |
| 28 | 1979 | 27612.17 |
| 29 | 1978 | 23087.50 |
| 30 | 1977 | 22652.71 |
