| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 8201 | 68 |
| 2015 | 9143 | 71 |
| 2014 | 10452 | 72 |
| 2013 | 10299 | 77 |
| 2012 | 9821 | 77 |
| 2011 | 9834 | 77 |
| 2010 | 8960 | 78 |
| 2009 | 7748 | 78 |
| 2008 | 9689 | 76 |
| 2007 | 9330 | 72 |
| 2006 | 8768 | 72 |
| 2005 | 7987 | 69 |
| 2004 | 7199 | 66 |
| 2003 | 6752 | 66 |
| 2002 | 7106 | 61 |
| 2001 | 7031 | 58 |
| 2000 | 6721 | 62 |
| 1999 | 5777 | 63 |
| 1998 | 5080 | 66 |
| 1997 | 4940 | 65 |
| 1996 | 4153 | 71 |
| 1995 | 3656 | 72 |
| 1994 | 5710 | 54 |
| 1993 | 5562 | 54 |
| 1992 | 4093 | 57 |
| 1991 | 3611 | 60 |
| 1990 | 3078 | 64 |
| 1989 | 2664 | 62 |
| 1988 | 2231 | 69 |
| 1987 | 1742 | 76 |
| 1986 | 1640 | 74 |