| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 643.3 | 28 |
| 2015 | 619.9 | 31 |
| 2014 | 600.2 | 31 |
| 2013 | 579.1 | 32 |
| 2012 | 559.3 | 32 |
| 2011 | 539.5 | 32 |
| 2010 | 526.7 | 33 |
| 2009 | 513.7 | 32 |
| 2008 | 498.9 | 32 |
| 2007 | 488.6 | 32 |
| 2006 | 476.8 | 33 |
| 2005 | 459.7 | 33 |
| 2004 | 450.4 | 31 |
| 2003 | 457.3 | 31 |
| 2002 | 470.9 | 30 |
| 2001 | 447.3 | 31 |
| 2000 | 432.1 | 31 |
| 1999 | 423.3 | 29 |
| 1998 | 414 | 30 |
| 1997 | 403.2 | 30 |
| 1996 | 393.7 | 30 |
| 1995 | 373.8 | 30 |