| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 8602 | 66 |
| 2015 | 8396 | 75 |
| 2014 | 7716 | 85 |
| 2013 | 7112 | 91 |
| 2012 | 6541 | 96 |
| 2011 | 6498 | 96 |
| 2010 | 6331 | 93 |
| 2009 | 5970 | 92 |
| 2008 | 5829 | 95 |
| 2007 | 5003 | 98 |
| 2006 | 4429 | 97 |
| 2005 | 3488 | 103 |
| 2004 | 3853 | 90 |
| 2003 | 3432 | 89 |
| 2002 | 3020 | 88 |
| 2001 | 2980 | 87 |
| 2000 | 2183 | 95 |
| 1999 | 2104 | 97 |
| 1998 | 1993 | 102 |
| 1997 | 1925 | 103 |
| 1996 | 1719 | 107 |
| 1995 | 1565 | 107 |
| 1994 | 1453 | 99 |
| 1993 | 1332 | 99 |
| 1992 | 1217 | 102 |
| 1991 | 1077 | 110 |
| 1990 | 987 | 111 |
| 1989 | 875 | 104 |
| 1988 | 803 | 111 |
| 1987 | 695 | 116 |
| 1986 | 723 | 106 |