| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 8875 | 38 |
| 2015 | 8541 | 49 |
| 2014 | 8288 | 50 |
| 2013 | 8088 | 52 |
| 2012 | 8057 | 51 |
| 2011 | 7997 | 50 |
| 2010 | 7757 | 52 |
| 2009 | 7528 | 48 |
| 2008 | 7272 | 52 |
| 2007 | 6813 | 51 |
| 2006 | 6445 | 52 |
| 2005 | 6146 | 50 |
| 2004 | 6036 | 51 |
| 2003 | 5787 | 49 |
| 2002 | 5693 | 48 |
| 2001 | 5475 | 46 |
| 2000 | 5366 | 46 |
| 1999 | 5161 | 46 |
| 1998 | 4891 | 48 |
| 1997 | 4666 | 49 |
| 1996 | 4350 | 49 |
| 1995 | 4010 | 49 |
| 1994 | 3892 | 47 |
| 1993 | 3732 | 46 |
| 1992 | 3551 | 44 |
| 1991 | 3480 | 43 |
| 1990 | 3275 | 44 |