| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1007.3 | 20 |
| 2015 | 979.9 | 22 |
| 2014 | 957.2 | 22 |
| 2013 | 919.7 | 22 |
| 2012 | 896.9 | 22 |
| 2011 | 899.8 | 22 |
| 2010 | 916.4 | 22 |
| 2009 | 889.1 | 22 |
| 2008 | 859.3 | 22 |
| 2007 | 823 | 22 |
| 2006 | 799.3 | 23 |
| 2005 | 758 | 23 |
| 2004 | 732.6 | 23 |
| 2003 | 705.7 | 23 |
| 2002 | 682 | 23 |
| 2001 | 668.5 | 24 |
| 2000 | 643.9 | 24 |
| 1999 | 596.6 | 23 |
| 1998 | 578 | 23 |
| 1997 | 566.6 | 23 |
| 1996 | 550.8 | 23 |
| 1995 | 536.5 | 23 |
| 1994 | 512 | 24 |
| 1993 | 506 | 24 |
| 1992 | 494.2 | 24 |
| 1991 | 466.8 | 25 |
| 1990 | 426 | 27 |