| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 21471.00 |
| 8 | 2014 | 23791.00 |
| 9 | 2013 | 64083.00 |
| 10 | 2012 | 24009.00 |
| 11 | 2011 | 7157.00 |
| 12 | 2010 | 56198.00 |
| 13 | 2009 | 22548.00 |
| 14 | 2008 | 30175.00 |
| 15 | 2007 | 175153.00 |
| 16 | 2006 | 37109.00 |
| 17 | 2005 | 35877.00 |
| 18 | 2000 | 15028.00 |
| 19 | 1995 | 17223.00 |
| 20 | 1990 | 458.00 |
| 21 | 1985 | 53.00 |
