| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 1415 | 29 |
| 2015 | 1441 | 32 |
| 2014 | 1675 | 31 |
| 2013 | 1657 | 31 |
| 2012 | 1590 | 31 |
| 2011 | 1631 | 31 |
| 2010 | 1403 | 31 |
| 2009 | 1369 | 30 |
| 2008 | 1790 | 28 |
| 2007 | 1552 | 29 |
| 2006 | 1319 | 27 |
| 2005 | 1109 | 26 |
| 2004 | 963 | 26 |
| 2003 | 809 | 25 |
| 2002 | 695 | 25 |
| 2001 | 634 | 26 |
| 2000 | 627 | 25 |
| 1999 | 594 | 24 |
| 1998 | 605 | 24 |
| 1997 | 581 | 25 |
| 1996 | 590 | 25 |
| 1995 | 591 | 24 |
| 1994 | 483 | 24 |
| 1993 | 416 | 24 |
| 1992 | 459 | 22 |
| 1991 | 438 | 23 |
| 1990 | 427 | 20 |
| 1989 | 355 | 22 |
| 1988 | 348 | 19 |
| 1987 | 324 | 18 |
| 1986 | 286 | 20 |