| 时间 | 值 （亿美元） | 世界排名 |
|---|---|---|
| 2016 | 84 | 101 |
| 2015 | 96 | 97 |
| 2014 | 105 | 100 |
| 2013 | 93 | 106 |
| 2012 | 86 | 107 |
| 2011 | 79 | 103 |
| 2010 | 56 | 106 |
| 2009 | 45 | 112 |
| 2008 | 51 | 115 |
| 2007 | 36 | 119 |
| 2006 | 29 | 117 |
| 2005 | 24 | 121 |
| 2004 | 18 | 128 |
| 2003 | 16 | 123 |
| 2002 | 18 | 112 |
| 2001 | 17 | 116 |
| 2000 | 18 | 109 |
| 1999 | 18 | 109 |
| 1998 | 20 | 103 |
| 1997 | 19 | 106 |
| 1996 | 16 | 106 |
| 1995 | 14 | 107 |
| 1994 | 12 | 109 |
| 1993 | 12 | 99 |
| 1992 | 11 | 101 |
| 1991 | 10 | 99 |
| 1990 | 7 | 110 |
| 1989 | 6 | 112 |
| 1988 | 6 | 111 |
| 1987 | 8 | 105 |
| 1986 | 7 | 104 |