| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 2072 | 133 |
| 2015 | 2016 | 140 |
| 2014 | 2949 | 133 |
| 2013 | 4030 | 120 |
| 2012 | 3855 | 121 |
| 2011 | 3570 | 129 |
| 2010 | 2965 | 131 |
| 2009 | 2545 | 134 |
| 2008 | 3891 | 118 |
| 2007 | 3069 | 120 |
| 2006 | 2303 | 126 |
| 2005 | 1829 | 128 |
| 2004 | 1367 | 132 |
| 2003 | 1049 | 135 |
| 2002 | 879 | 141 |
| 2001 | 781 | 139 |
| 2000 | 636 | 147 |
| 1999 | 636 | 147 |
| 1998 | 835 | 134 |
| 1997 | 991 | 126 |
| 1996 | 873 | 133 |
| 1995 | 936 | 126 |
| 1994 | 1012 | 115 |
| 1993 | 1258 | 104 |
| 1992 | 1418 | 96 |
| 1991 | 1490 | 96 |
| 1990 | 1570 | 93 |
| 1989 | 1598 | 84 |
| 1988 | 1450 | 86 |
| 1987 | 1249 | 89 |