| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 672.2 | 69 |
| 2015 | 669.04 | 69 |
| 2014 | 630.67 | 73 |
| 2013 | 576.9 | 76 |
| 2012 | 518.22 | 77 |
| 2011 | 459.15 | 81 |
| 2010 | 393.33 | 84 |
| 2009 | 336.89 | 85 |
| 2008 | 295.49 | 87 |
| 2007 | 223.11 | 90 |
| 2006 | 173.31 | 98 |
| 2005 | 143.08 | 97 |
| 2004 | 120.3 | 98 |
| 2003 | 101.28 | 98 |
| 2002 | 96.88 | 93 |
| 2001 | 114.01 | 86 |
| 2000 | 137.6 | 79 |
| 1999 | 170.78 | 73 |
| 1998 | 149.89 | 77 |
| 1997 | 147.45 | 76 |
| 1996 | 139.49 | 75 |
| 1995 | 133.5 | 76 |
| 1994 | 128.99 | 72 |
| 1993 | 130.99 | 71 |
| 1992 | 129.41 | 67 |
| 1991 | 136.78 | 64 |
| 1990 | 133.61 | 65 |