| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 1528 | 138 |
| 2015 | 1712 | 144 |
| 2014 | 2911 | 134 |
| 2013 | 2965 | 138 |
| 2012 | 2952 | 135 |
| 2011 | 3197 | 135 |
| 2010 | 2737 | 137 |
| 2009 | 2255 | 136 |
| 2008 | 2882 | 131 |
| 2007 | 2111 | 137 |
| 2006 | 2012 | 135 |
| 2005 | 1637 | 132 |
| 2004 | 1289 | 134 |
| 2003 | 998 | 140 |
| 2002 | 886 | 140 |
| 2001 | 843 | 135 |
| 2000 | 998 | 134 |
| 1999 | 751 | 141 |
| 1998 | 639 | 145 |
| 1997 | 784 | 135 |
| 1996 | 882 | 132 |
| 1995 | 756 | 134 |
| 1994 | 650 | 128 |
| 1993 | 725 | 125 |
| 1992 | 1138 | 106 |
| 1991 | 1087 | 108 |
| 1990 | 1147 | 107 |
| 1989 | 1006 | 100 |
| 1988 | 957 | 99 |
| 1987 | 1022 | 93 |
| 1986 | 845 | 98 |