| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 11825 | 58 |
| 2015 | 11406 | 63 |
| 2014 | 10647 | 71 |
| 2013 | 10570 | 76 |
| 2012 | 9985 | 76 |
| 2011 | 9187 | 82 |
| 2010 | 8199 | 83 |
| 2009 | 6809 | 89 |
| 2008 | 6911 | 89 |
| 2007 | 6121 | 87 |
| 2006 | 5245 | 93 |
| 2005 | 4697 | 90 |
| 2004 | 4426 | 85 |
| 2003 | 4168 | 82 |
| 2002 | 4062 | 80 |
| 2001 | 3982 | 76 |
| 2000 | 3808 | 81 |
| 1999 | 3688 | 79 |
| 1998 | 3615 | 79 |
| 1997 | 3408 | 79 |
| 1996 | 3230 | 79 |
| 1995 | 3279 | 77 |
| 1994 | 3045 | 71 |
| 1993 | 2855 | 71 |
| 1992 | 2618 | 75 |
| 1991 | 2257 | 80 |
| 1990 | 2391 | 76 |
| 1989 | 2274 | 69 |
| 1988 | 2059 | 71 |
| 1987 | 2034 | 70 |
| 1986 | 1956 | 67 |