| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 4088 | 101 |
| 2015 | 4096 | 110 |
| 2014 | 4067 | 115 |
| 2013 | 3993 | 121 |
| 2012 | 3871 | 119 |
| 2011 | 3807 | 122 |
| 2010 | 3679 | 117 |
| 2009 | 3492 | 116 |
| 2008 | 3386 | 125 |
| 2007 | 2763 | 126 |
| 2006 | 2537 | 121 |
| 2005 | 2203 | 121 |
| 2004 | 2061 | 122 |
| 2003 | 1889 | 120 |
| 2002 | 1812 | 113 |
| 2001 | 1728 | 110 |
| 2000 | 1658 | 109 |
| 1999 | 1625 | 108 |
| 1998 | 1606 | 112 |
| 1997 | 1500 | 112 |
| 1996 | 1469 | 114 |
| 1995 | 1471 | 110 |
| 1994 | 1419 | 100 |
| 1993 | 1338 | 98 |
| 1992 | 1338 | 99 |
| 1991 | 1157 | 107 |
| 1990 | 1168 | 106 |
| 1989 | 1243 | 91 |
| 1988 | 1930 | 76 |
| 1987 | 2160 | 68 |
| 1986 | 2126 | 66 |