| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 2763 | 3 |
| 2015 | 2678 | 3 |
| 2014 | 2921 | 3 |
| 2013 | 2679 | 3 |
| 2012 | 2474 | 3 |
| 2011 | 2468 | 3 |
| 2010 | 2226 | 3 |
| 2009 | 2178 | 3 |
| 2008 | 2363 | 3 |
| 2007 | 2054 | 3 |
| 2006 | 1752 | 3 |
| 2005 | 1530 | 3 |
| 2004 | 1398 | 4 |
| 2003 | 1103 | 4 |
| 2002 | 958 | 5 |
| 2001 | 810 | 5 |
| 2000 | 796 | 4 |
| 1999 | 799 | 4 |
| 1998 | 793 | 4 |
| 1997 | 741 | 4 |
| 1996 | 715 | 4 |
| 1995 | 693 | 4 |
| 1994 | 554 | 4 |
| 1993 | 528 | 4 |
| 1992 | 542 | 4 |
| 1991 | 479 | 4 |
| 1990 | 492 | 4 |
| 1989 | 398 | 4 |
| 1988 | 373 | 4 |
| 1987 | 363 | 4 |
| 1986 | 300 | 4 |