| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 851.8 | 23 |
| 2015 | 853 | 24 |
| 2014 | 810 | 25 |
| 2013 | 800.6 | 26 |
| 2012 | 750 | 26 |
| 2011 | 717.6 | 26 |
| 2010 | 680 | 26 |
| 2009 | 677.8 | 27 |
| 2008 | 586 | 28 |
| 2007 | 530.6 | 31 |
| 2006 | 510.8 | 30 |
| 2005 | 466 | 32 |
| 2004 | 437 | 33 |
| 2003 | 420.2 | 33 |
| 2002 | 381.9 | 34 |
| 2001 | 338 | 34 |
| 2000 | 314.2 | 35 |
| 1999 | 295.1 | 35 |
| 1998 | 293 | 33 |
| 1997 | 346.2 | 32 |
| 1996 | 346 | 32 |
| 1995 | 337 | 32 |
| 1994 | 332.5 | 32 |
| 1993 | 325 | 32 |
| 1992 | 324.7 | 31 |
| 1991 | 306.9 | 32 |
| 1990 | 286.7 | 32 |
| 1989 | 277.8 | 27 |
| 1988 | 251.4 | 27 |
| 1987 | 233.7 | 27 |
| 1986 | 234.1 | 26 |