| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 85 | 96 |
| 2015 | 87 | 108 |
| 2014 | 100 | 108 |
| 2013 | 93 | 112 |
| 2012 | 92 | 110 |
| 2011 | 79 | 113 |
| 2010 | 61 | 117 |
| 2009 | 53 | 116 |
| 2008 | 75 | 109 |
| 2007 | 59 | 110 |
| 2006 | 44 | 112 |
| 2005 | 33 | 120 |
| 2004 | 25 | 124 |
| 2003 | 19 | 128 |
| 2002 | 14 | 132 |
| 2001 | 13 | 132 |
| 2000 | 12 | 131 |
| 1999 | 11 | 133 |
| 1998 | 13 | 126 |
| 1997 | 15 | 120 |
| 1996 | 10 | 135 |
| 1995 | 11 | 128 |
| 1994 | 27 | 87 |
| 1993 | 19 | 99 |
| 1992 | 24 | 87 |
| 1991 | 20 | 90 |
| 1990 | 35 | 69 |