| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 559 | 20 |
| 2015 | 567 | 22 |
| 2014 | 631 | 23 |
| 2013 | 668 | 20 |
| 2012 | 657 | 19 |
| 2011 | 615 | 20 |
| 2010 | 508 | 22 |
| 2009 | 423 | 23 |
| 2008 | 490 | 22 |
| 2007 | 415 | 23 |
| 2006 | 327 | 23 |
| 2005 | 305 | 22 |
| 2004 | 279 | 20 |
| 2003 | 219 | 20 |
| 2002 | 182 | 21 |
| 2001 | 171 | 19 |
| 2000 | 190 | 17 |
| 1999 | 188 | 15 |
| 1998 | 181 | 15 |
| 1997 | 193 | 14 |
| 1996 | 190 | 14 |
| 1995 | 175 | 14 |
| 1994 | 157 | 11 |
| 1993 | 136 | 11 |
| 1992 | 137 | 11 |
| 1991 | 135 | 11 |
| 1990 | 138 | 10 |
| 1989 | 132 | 9 |