| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2540 | 18 |
| 2015 | 2843 | 19 |
| 2014 | 3078 | 21 |
| 2013 | 3272 | 21 |
| 2012 | 3288 | 19 |
| 2011 | 2794 | 21 |
| 2010 | 2332 | 20 |
| 2009 | 2078 | 19 |
| 2008 | 2358 | 19 |
| 2007 | 1835 | 22 |
| 2006 | 1599 | 21 |
| 2005 | 1441 | 21 |
| 2004 | 1208 | 22 |
| 2003 | 981 | 21 |
| 2002 | 814 | 22 |
| 2001 | 832 | 21 |
| 2000 | 891 | 19 |
| 1999 | 802 | 19 |
| 1998 | 814 | 19 |
| 1997 | 820 | 21 |
| 1996 | 776 | 22 |
| 1995 | 730 | 21 |
| 1994 | 597 | 22 |
| 1993 | 559 | 20 |
| 1992 | 536 | 20 |
| 1991 | 529 | 19 |
| 1990 | 533 | 18 |
| 1989 | 510 | 17 |
| 1988 | 393 | 18 |
| 1987 | 324 | 19 |
| 1986 | 330 | 15 |