| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1435 | 26 |
| 2015 | 1788 | 24 |
| 2014 | 2392 | 21 |
| 2013 | 2506 | 20 |
| 2012 | 2334 | 22 |
| 2011 | 2370 | 20 |
| 2010 | 1915 | 19 |
| 2009 | 1337 | 25 |
| 2008 | 1824 | 23 |
| 2007 | 1266 | 27 |
| 2006 | 958 | 27 |
| 2005 | 776 | 27 |
| 2004 | 664 | 29 |
| 2003 | 509 | 30 |
| 2002 | 497 | 28 |
| 2001 | 586 | 22 |
| 2000 | 591 | 22 |
| 1999 | 519 | 21 |
| 1998 | 611 | 20 |
| 1997 | 633 | 22 |
| 1996 | 568 | 23 |
| 1995 | 541 | 23 |
| 1994 | 360 | 24 |
| 1993 | 277 | 26 |
| 1992 | 231 | 30 |
| 1991 | 230 | 28 |
| 1990 | 225 | 28 |
| 1989 | 199 | 27 |
| 1988 | 161 | 31 |
| 1987 | 166 | 25 |
| 1986 | 156 | 23 |