| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 7144 | 76 |
| 2015 | 7070 | 82 |
| 2014 | 7257 | 89 |
| 2013 | 7023 | 93 |
| 2012 | 6745 | 92 |
| 2011 | 6986 | 94 |
| 2010 | 6912 | 89 |
| 2009 | 6866 | 88 |
| 2008 | 6447 | 92 |
| 2007 | 5939 | 92 |
| 2006 | 5513 | 88 |
| 2005 | 5244 | 83 |
| 2004 | 5325 | 78 |
| 2003 | 4995 | 73 |
| 2002 | 4836 | 70 |
| 2001 | 4925 | 70 |
| 2000 | 4820 | 71 |
| 1999 | 3830 | 78 |
| 1998 | 3677 | 78 |
| 1997 | 3474 | 78 |
| 1996 | 3323 | 78 |
| 1995 | 3139 | 78 |
| 1994 | 3019 | 72 |
| 1993 | 2814 | 73 |
| 1992 | 2702 | 73 |
| 1991 | 2547 | 74 |
| 1990 | 2345 | 79 |
| 1989 | 2153 | 74 |
| 1988 | 2004 | 75 |
| 1987 | 1746 | 75 |
| 1986 | 1535 | 75 |