| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 69 | 102 |
| 2015 | 86 | 110 |
| 2014 | 100 | 107 |
| 2013 | 85 | 115 |
| 2012 | 70 | 122 |
| 2011 | 70 | 123 |
| 2010 | 54 | 122 |
| 2009 | 49 | 121 |
| 2008 | 66 | 114 |
| 2007 | 50 | 116 |
| 2006 | 38 | 116 |
| 2005 | 36 | 117 |
| 2004 | 31 | 117 |
| 2003 | 27 | 112 |
| 2002 | 23 | 114 |
| 2001 | 22 | 107 |
| 2000 | 18 | 114 |
| 1999 | 18 | 118 |
| 1998 | 17 | 118 |
| 1997 | 18 | 115 |
| 1996 | 18 | 113 |
| 1995 | 16 | 114 |
| 1994 | 16 | 108 |
| 1993 | 21 | 93 |
| 1992 | 21 | 91 |
| 1991 | 18 | 95 |
| 1990 | 19 | 89 |
| 1989 | 20 | 75 |
| 1988 | 20 | 72 |
| 1987 | 25 | 64 |
| 1986 | 24 | 64 |