| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2659 | 17 |
| 2015 | 2710 | 18 |
| 2014 | 3750 | 16 |
| 2013 | 3790 | 16 |
| 2012 | 3490 | 17 |
| 2011 | 3020 | 19 |
| 2010 | 2140 | 19 |
| 2009 | 1920 | 18 |
| 2008 | 2392 | 18 |
| 2007 | 1786 | 18 |
| 2006 | 1456 | 21 |
| 2005 | 1173 | 23 |
| 2004 | 910 | 25 |
| 2003 | 671 | 27 |
| 2002 | 522 | 29 |
| 2001 | 484 | 29 |
| 2000 | 498 | 29 |
| 1999 | 365 | 31 |
| 1998 | 338 | 30 |
| 1997 | 404 | 30 |
| 1996 | 373 | 30 |
| 1995 | 284 | 31 |
| 1994 | 264 | 30 |
| 1993 | 256 | 28 |
| 1992 | 248 | 28 |
| 1991 | 244 | 27 |
| 1990 | 235 | 29 |
| 1989 | 176 | 30 |
| 1988 | 120 | 33 |
| 1987 | 124 | 30 |
| 1986 | 106 | 31 |