| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 294 | 19 |
| 2015 | 321 | 18 |
| 2014 | 327 | 19 |
| 2013 | 363 | 16 |
| 2012 | 352 | 16 |
| 2011 | 320 | 20 |
| 2010 | 253 | 20 |
| 2009 | 213 | 20 |
| 2008 | 246 | 20 |
| 2007 | 189 | 22 |
| 2006 | 205 | 18 |
| 2005 | 201 | 16 |
| 2004 | 189 | 17 |
| 2003 | 135 | 19 |
| 2002 | 156 | 17 |
| 2001 | 133 | 18 |
| 2000 | 129 | 18 |
| 1999 | 119 | 21 |
| 1998 | 122 | 21 |
| 1997 | 142 | 19 |
| 1996 | 137 | 19 |
| 1995 | 112 | 23 |
| 1994 | 109 | 20 |
| 1993 | 103 | 20 |
| 1992 | 100 | 20 |
| 1991 | 104 | 18 |
| 1990 | 132 | 16 |