| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2016 | |
| 5 | 2015 | |
| 6 | 2014 | |
| 7 | 2013 | 58058.96 |
| 8 | 2012 | 30482.63 |
| 9 | 2011 | 59256.62 |
| 10 | 2010 | 47119.99 |
| 11 | 2009 | 49039.38 |
| 12 | 2008 | 18033.63 |
| 13 | 2007 | 15569.11 |
| 14 | 2006 | 26625.80 |
| 15 | 2005 | 22057.50 |
| 16 | 2004 | 19702.73 |
| 17 | 2003 | 19451.72 |
| 18 | 2002 | 16557.56 |
| 19 | 2001 | 14397.23 |
| 20 | 2000 | 13685.15 |
| 21 | 1999 | 14608.43 |
| 22 | 1998 | 11762.66 |
| 23 | 1997 | 9967.63 |
| 24 | 1996 | 9187.13 |
| 25 | 1995 | 8742.09 |
| 26 | 1994 | 6700.23 |
| 27 | 1993 | 5615.15 |
| 28 | 1992 | 6611.46 |
| 29 | 1991 | 9925.32 |
| 30 | 1990 | 9916.82 |
| 31 | 1989 | 9529.53 |
| 32 | 1988 | 9227.52 |
| 33 | 1987 | 9716.29 |
| 34 | 1986 | 10311.12 |
| 35 | 1985 | 7469.34 |
| 36 | 1984 | 8030.09 |
| 37 | 1983 | 8775.64 |
| 38 | 1982 | 7760.05 |
| 39 | 1981 | 8401.68 |
| 40 | 1980 | 11062.12 |
| 41 | 1979 | 6973.43 |
| 42 | 1978 | 6877.73 |
