| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 470 | 24 |
| 2015 | 475 | 25 |
| 2014 | 574 | 25 |
| 2013 | 562 | 24 |
| 2012 | 523 | 24 |
| 2011 | 476 | 25 |
| 2010 | 449 | 25 |
| 2009 | 368 | 26 |
| 2008 | 476 | 23 |
| 2007 | 411 | 24 |
| 2006 | 316 | 25 |
| 2005 | 290 | 23 |
| 2004 | 243 | 21 |
| 2003 | 209 | 21 |
| 2002 | 184 | 20 |
| 2001 | 165 | 21 |
| 2000 | 156 | 22 |
| 1999 | 161 | 18 |
| 1998 | 155 | 19 |
| 1997 | 150 | 19 |
| 1996 | 141 | 21 |
| 1995 | 139 | 19 |
| 1994 | 124 | 17 |
| 1993 | 123 | 14 |
| 1992 | 131 | 13 |
| 1991 | 125 | 12 |
| 1990 | 123 | 12 |
| 1989 | 105 | 11 |
| 1988 | 102 | 10 |
| 1987 | 95 | 9 |
| 1986 | 85 | 9 |