| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 364 | 25 |
| 2015 | 407 | 27 |
| 2014 | 493 | 26 |
| 2013 | 486 | 25 |
| 2012 | 465 | 25 |
| 2011 | 409 | 26 |
| 2010 | 412 | 24 |
| 2009 | 352 | 26 |
| 2008 | 424 | 25 |
| 2007 | 376 | 25 |
| 2006 | 318 | 25 |
| 2005 | 296 | 24 |
| 2004 | 253 | 22 |
| 2003 | 217 | 22 |
| 2002 | 195 | 20 |
| 2001 | 184 | 19 |
| 2000 | 177 | 21 |
| 1999 | 162 | 20 |
| 1998 | 156 | 18 |
| 1997 | 158 | 18 |
| 1996 | 148 | 20 |
| 1995 | 136 | 19 |
| 1994 | 120 | 17 |
| 1993 | 120 | 15 |
| 1992 | 125 | 14 |
| 1991 | 130 | 13 |
| 1990 | 125 | 13 |
| 1989 | 106 | 11 |
| 1988 | 95 | 12 |
| 1987 | 84 | 11 |
| 1986 | 80 | 10 |