| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 4671 | 10 |
| 2015 | 4700 | 12 |
| 2014 | 5292 | 12 |
| 2013 | 5276 | 12 |
| 2012 | 5713 | 11 |
| 2011 | 5667 | 11 |
| 2010 | 4489 | 12 |
| 2009 | 3464 | 13 |
| 2008 | 3501 | 16 |
| 2007 | 3021 | 16 |
| 2006 | 2294 | 16 |
| 2005 | 1833 | 17 |
| 2004 | 1390 | 17 |
| 2003 | 948 | 23 |
| 2002 | 783 | 23 |
| 2001 | 651 | 25 |
| 2000 | 650 | 24 |
| 1999 | 612 | 23 |
| 1998 | 533 | 28 |
| 1997 | 495 | 29 |
| 1996 | 453 | 29 |
| 1995 | 432 | 28 |
| 1994 | 333 | 30 |
| 1993 | 274 | 32 |
| 1992 | 276 | 33 |
| 1991 | 229 | 35 |
| 1990 | 271 | 31 |
| 1989 | 241 | 29 |
| 1988 | 221 | 25 |
| 1987 | 194 | 25 |
| 1986 | 174 | 24 |