| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1175 | 20 |
| 2015 | 1153 | 26 |
| 2014 | 1308 | 28 |
| 2013 | 1335 | 29 |
| 2012 | 1291 | 31 |
| 2011 | 1402 | 27 |
| 2010 | 1242 | 27 |
| 2009 | 1016 | 28 |
| 2008 | 1329 | 26 |
| 2007 | 1304 | 23 |
| 2006 | 1116 | 22 |
| 2005 | 1016 | 22 |
| 2004 | 1001 | 20 |
| 2003 | 854 | 19 |
| 2002 | 687 | 19 |
| 2001 | 634 | 20 |
| 2000 | 697 | 20 |
| 1999 | 716 | 19 |
| 1998 | 717 | 19 |
| 1997 | 709 | 20 |
| 1996 | 767 | 18 |
| 1995 | 723 | 18 |
| 1994 | 577 | 19 |
| 1993 | 515 | 20 |
| 1992 | 699 | 17 |
| 1991 | 701 | 15 |
| 1990 | 714 | 14 |
| 1989 | 622 | 9 |
| 1988 | 596 | 8 |
| 1987 | 530 | 7 |
| 1986 | 441 | 8 |