| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2020 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 349.82 |
| 8 | 2013 | 358.82 |
| 9 | 2012 | 417.19 |
| 10 | 2011 | 499.16 |
| 11 | 2010 | 513.93 |
| 12 | 2009 | 475.47 |
| 13 | 2008 | 577.79 |
| 14 | 2007 | 528.28 |
| 15 | 2006 | 432.18 |
| 16 | 2005 | 402.71 |
| 17 | 2004 | 390.92 |
| 18 | 2003 | 339.73 |
| 19 | 2002 | 313.57 |
| 20 | 2001 | 274.89 |
| 21 | 2000 | 265.80 |
| 22 | 1999 | 236.03 |
| 23 | 1995 | 159.36 |
| 24 | 1990 | 91.66 |
