| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 4147 | 98 |
| 2015 | 3924 | 114 |
| 2014 | 3688 | 120 |
| 2013 | 3453 | 131 |
| 2012 | 3300 | 131 |
| 2011 | 3188 | 136 |
| 2010 | 2826 | 135 |
| 2009 | 2636 | 131 |
| 2008 | 2794 | 133 |
| 2007 | 2490 | 132 |
| 2006 | 2257 | 128 |
| 2005 | 2078 | 123 |
| 2004 | 1873 | 125 |
| 2003 | 1753 | 124 |
| 2002 | 1702 | 117 |
| 2001 | 1568 | 113 |
| 2000 | 1656 | 111 |
| 1999 | 1609 | 111 |
| 1998 | 1742 | 110 |
| 1997 | 1634 | 109 |
| 1996 | 1472 | 113 |
| 1995 | 1408 | 114 |
| 1994 | 1276 | 108 |
| 1993 | 1147 | 109 |
| 1992 | 1075 | 109 |
| 1991 | 992 | 117 |
| 1990 | 826 | 122 |
| 1989 | 929 | 103 |
| 1988 | 887 | 103 |
| 1987 | 820 | 106 |
| 1986 | 857 | 97 |