| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 332981956.88 |
| 8 | 2013 | 324956646.02 |
| 9 | 2012 | 313179217.17 |
| 10 | 2011 | 316111851.04 |
| 11 | 2010 | 263126873.37 |
| 12 | 2009 | 221526674.91 |
| 13 | 1994 | 353097490.94 |
| 14 | 1993 | 344530359.09 |
| 15 | 1992 | 276357290.35 |
| 16 | 1991 | 258981901.61 |
| 17 | 1990 | 253123421.47 |
| 18 | 1989 | 225879622.68 |
| 19 | 1988 | 181442575.82 |
| 20 | 1987 | 151821281.41 |
| 21 | 1986 | 139170515.09 |
| 22 | 1985 | 271008355.77 |
| 23 | 1984 | 115034337.47 |
| 24 | 1983 | 123415524.99 |
| 25 | 1982 | 153727219.34 |
| 26 | 1981 | 121941015.38 |
| 27 | 1980 | 144431071.70 |
| 28 | 1979 | 87142175.73 |
| 29 | 1978 | 69055040.38 |
| 30 | 1977 | 64381390.59 |
