| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1357 | 30 |
| 2015 | 1427 | 29 |
| 2014 | 1782 | 27 |
| 2013 | 1866 | 26 |
| 2012 | 1917 | 26 |
| 2011 | 1774 | 27 |
| 2010 | 1357 | 28 |
| 2009 | 938 | 30 |
| 2008 | 1275 | 29 |
| 2007 | 931 | 31 |
| 2006 | 806 | 30 |
| 2005 | 757 | 29 |
| 2004 | 549 | 33 |
| 2003 | 422 | 36 |
| 2002 | 383 | 33 |
| 2001 | 375 | 30 |
| 2000 | 436 | 29 |
| 1999 | 333 | 31 |
| 1998 | 353 | 31 |
| 1997 | 513 | 24 |
| 1996 | 429 | 26 |
| 1995 | 406 | 25 |
| 1994 | 320 | 25 |
| 1993 | 283 | 24 |
| 1992 | 273 | 25 |
| 1991 | 259 | 26 |
| 1990 | 218 | 30 |
| 1989 | 164 | 31 |
| 1988 | 132 | 35 |
| 1987 | 129 | 35 |
| 1986 | 107 | 35 |