| 序号 | 时间 (年) |
数据 (万美元 ) |
|---|---|---|
| 1 | 2015 | |
| 2 | 2014 | |
| 3 | 2013 | |
| 4 | 2012 | |
| 5 | 2011 | |
| 6 | 2010 | |
| 7 | 2009 | 75.15 |
| 8 | 2008 | 93.39 |
| 9 | 2007 | 247.04 |
| 10 | 2005 | 605.16 |
| 11 | 2004 | 152.76 |
| 12 | 2003 | 205.95 |
| 13 | 2002 | 61.84 |
| 14 | 2001 | 84.03 |
| 15 | 2000 | 170.65 |
| 16 | 1999 | 156.08 |
| 17 | 1998 | 14.41 |
| 18 | 1997 | 142.89 |
| 19 | 1996 | 150.72 |
| 20 | 1995 | 123.41 |
