| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 165.6 | 108 |
| 2015 | 161.74 | 112 |
| 2014 | 185.21 | 110 |
| 2013 | 181.54 | 112 |
| 2012 | 172.07 | 113 |
| 2011 | 186.29 | 111 |
| 2010 | 171.64 | 109 |
| 2009 | 176.01 | 106 |
| 2008 | 191.01 | 106 |
| 2007 | 157.76 | 106 |
| 2006 | 128.67 | 107 |
| 2005 | 112.25 | 105 |
| 2004 | 100.23 | 105 |
| 2003 | 83.7 | 103 |
| 2002 | 66.51 | 108 |
| 2001 | 57.49 | 112 |
| 2000 | 55.06 | 113 |
| 1999 | 46.86 | 116 |
| 1998 | 41.17 | 119 |
| 1997 | 36.72 | 126 |
| 1996 | 27.86 | 134 |
| 1995 | 18.67 | 144 |
| 1994 | 12.56 | 145 |