| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 553 | 21 |
| 2015 | 564 | 23 |
| 2014 | 640 | 22 |
| 2013 | 631 | 22 |
| 2012 | 582 | 22 |
| 2011 | 586 | 21 |
| 2010 | 523 | 20 |
| 2009 | 523 | 18 |
| 2008 | 626 | 18 |
| 2007 | 541 | 19 |
| 2006 | 452 | 19 |
| 2005 | 370 | 20 |
| 2004 | 334 | 18 |
| 2003 | 283 | 17 |
| 2002 | 243 | 16 |
| 2001 | 221 | 16 |
| 2000 | 211 | 16 |
| 1999 | 184 | 16 |
| 1998 | 158 | 17 |
| 1997 | 137 | 24 |
| 1996 | 146 | 20 |
| 1995 | 139 | 18 |
| 1994 | 120 | 19 |
| 1993 | 104 | 19 |
| 1992 | 107 | 16 |
| 1991 | 104 | 16 |
| 1990 | 101 | 15 |
| 1989 | 85 | 14 |
| 1988 | 83 | 12 |
| 1987 | 71 | 13 |
| 1986 | 60 | 13 |