| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 12910.5 | 1 |
| 2015 | 11788.5 | 3 |
| 2014 | 10782 | 3 |
| 2013 | 10335.5 | 3 |
| 2012 | 9608.5 | 3 |
| 2011 | 8832.2 | 3 |
| 2010 | 7819.5 | 3 |
| 2009 | 7137.7 | 3 |
| 2008 | 6448.6 | 3 |
| 2007 | 5922 | 5 |
| 2006 | 5214.6 | 5 |
| 2005 | 4554.9 | 6 |
| 2004 | 3949.3 | 7 |
| 2003 | 3649.4 | 7 |
| 2002 | 3448.4 | 7 |
| 2001 | 3178.9 | 8 |
| 2000 | 2961 | 8 |
| 1999 | 2581.1 | 9 |
| 1998 | 2128.1 | 10 |
| 1997 | 1782.1 | 10 |
| 1996 | 1561.9 | 11 |
| 1995 | 1399.9 | 12 |
| 1994 | 1356.9 | 12 |
| 1993 | 1249.5 | 12 |
| 1992 | 1025 | 14 |
| 1991 | 793.3 | 16 |
| 1990 | 651.3 | 16 |