| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 3449 | 114 |
| 2015 | 3386 | 121 |
| 2014 | 3462 | 124 |
| 2013 | 3618 | 126 |
| 2012 | 3514 | 128 |
| 2011 | 3286 | 132 |
| 2010 | 3143 | 126 |
| 2009 | 2917 | 125 |
| 2008 | 2928 | 130 |
| 2007 | 2893 | 124 |
| 2006 | 2758 | 120 |
| 2005 | 2646 | 117 |
| 2004 | 2518 | 113 |
| 2003 | 2435 | 105 |
| 2002 | 2391 | 96 |
| 2001 | 2207 | 96 |
| 2000 | 2127 | 97 |
| 1999 | 2073 | 98 |
| 1998 | 2093 | 97 |
| 1997 | 2056 | 99 |
| 1996 | 2157 | 100 |
| 1995 | 2357 | 90 |
| 1994 | 2137 | 85 |
| 1993 | 1987 | 84 |
| 1992 | 1844 | 84 |
| 1991 | 1702 | 87 |
| 1990 | 1659 | 90 |
| 1989 | 1589 | 85 |
| 1988 | 1604 | 82 |
| 1987 | 1494 | 83 |
| 1986 | 1393 | 82 |