| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 5167 | 5 |
| 2015 | 5105 | 7 |
| 2014 | 5241 | 9 |
| 2013 | 5352 | 9 |
| 2012 | 4929 | 10 |
| 2011 | 4556 | 12 |
| 2010 | 4007 | 11 |
| 2009 | 3294 | 11 |
| 2008 | 3702 | 13 |
| 2007 | 3494 | 13 |
| 2006 | 3227 | 12 |
| 2005 | 2921 | 11 |
| 2004 | 2655 | 11 |
| 2003 | 2287 | 11 |
| 2002 | 2019 | 11 |
| 2001 | 1911 | 10 |
| 2000 | 2027 | 10 |
| 1999 | 1744 | 11 |
| 1998 | 1749 | 11 |
| 1997 | 1882 | 9 |
| 1996 | 1809 | 9 |
| 1995 | 1739 | 10 |
| 1994 | 1515 | 9 |
| 1993 | 1354 | 9 |
| 1992 | 1196 | 10 |
| 1991 | 987 | 10 |
| 1990 | 824 | 10 |
| 1989 | 733 | 10 |
| 1988 | 635 | 10 |
| 1987 | 487 | 10 |
| 1986 | 361 | 12 |