| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 41.73 |
| 8 | 2014 | 50.68 |
| 9 | 2013 | 66.54 |
| 10 | 2012 | 80.95 |
| 11 | 2011 | 78.63 |
| 12 | 2010 | 50.25 |
| 13 | 2009 | 56.40 |
| 14 | 2008 | 30.63 |
| 15 | 2007 | 41.79 |
| 16 | 2006 | 13.86 |
| 17 | 2005 | 13.42 |
| 18 | 2004 | 8.37 |
| 19 | 2003 | 6.37 |
| 20 | 2002 | 6.87 |
| 21 | 2001 | 3.91 |
| 22 | 2000 | 3.51 |
| 23 | 1999 | 2.94 |
| 24 | 1998 | 7.03 |
| 25 | 1997 | 3.94 |
| 26 | 1996 | 4.69 |
| 27 | 1995 | 3.77 |
| 28 | 1994 | 1.01 |
