| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 5002 | 8 |
| 2015 | 5306 | 9 |
| 2014 | 6354 | 7 |
| 2013 | 6384 | 7 |
| 2012 | 6548 | 7 |
| 2011 | 6524 | 7 |
| 2010 | 5060 | 9 |
| 2009 | 3866 | 10 |
| 2008 | 5008 | 10 |
| 2007 | 4273 | 11 |
| 2006 | 3681 | 11 |
| 2005 | 3087 | 11 |
| 2004 | 2636 | 12 |
| 2003 | 2089 | 12 |
| 2002 | 1786 | 13 |
| 2001 | 1662 | 13 |
| 2000 | 1850 | 12 |
| 1999 | 1352 | 15 |
| 1998 | 1108 | 16 |
| 1997 | 1653 | 10 |
| 1996 | 1688 | 10 |
| 1995 | 1493 | 11 |
| 1994 | 1122 | 12 |
| 1993 | 906 | 15 |
| 1992 | 870 | 14 |
| 1991 | 855 | 13 |
| 1990 | 724 | 15 |
| 1989 | 626 | 15 |
| 1988 | 519 | 14 |
| 1987 | 414 | 14 |
| 1986 | 327 | 16 |