| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2022 | |
| 2 | 2021 | |
| 3 | 2020 | |
| 4 | 2019 | |
| 5 | 2018 | |
| 6 | 2017 | |
| 7 | 2016 | 6595.95 |
| 8 | 2015 | 9172.07 |
| 9 | 2014 | 5965.19 |
| 10 | 2013 | 4172.77 |
| 11 | 2012 | 3212.18 |
| 12 | 2011 | 5500.31 |
| 13 | 2010 | 5379.72 |
| 14 | 2009 | 1948.33 |
| 15 | 2008 | 3283.11 |
| 16 | 2007 | 2304.17 |
| 17 | 2006 | 988.95 |
| 18 | 2005 | 1750.12 |
| 19 | 2004 | 1663.16 |
| 20 | 2003 | 1164.36 |
| 21 | 2002 | 994.34 |
| 22 | 2001 | 502.55 |
| 23 | 2000 | 706.67 |
| 24 | 1999 | 1013.90 |
| 25 | 1998 | 2190.43 |
| 26 | 1997 | 2242.04 |
| 27 | 1996 | 1548.04 |
| 28 | 1995 | 1522.54 |
| 29 | 1994 | 704.40 |
| 30 | 1993 | 928.10 |
| 31 | 1992 | 695.29 |
| 32 | 1991 | 1106.59 |
| 33 | 1990 | 942.62 |
| 34 | 1989 | 1210.36 |
| 35 | 1987 | 826.52 |