| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 3012 | 71 |
| 2015 | 2931 | 91 |
| 2014 | 2879 | 92 |
| 2013 | 2865 | 95 |
| 2012 | 2851 | 96 |
| 2011 | 2684 | 98 |
| 2010 | 2648 | 105 |
| 2009 | 2523 | 96 |
| 2008 | 2559 | 95 |
| 2007 | 2502 | 93 |
| 2006 | 2486 | 87 |
| 2005 | 2433 | 82 |
| 2004 | 2350 | 83 |
| 2003 | 2203 | 85 |
| 2002 | 2068 | 85 |
| 2001 | 1963 | 81 |
| 2000 | 1871 | 81 |
| 1999 | 1766 | 78 |
| 1998 | 1717 | 79 |
| 1997 | 1935 | 74 |
| 1996 | 1986 | 73 |
| 1995 | 1911 | 74 |
| 1994 | 1783 | 72 |
| 1993 | 1668 | 70 |
| 1992 | 1552 | 68 |
| 1991 | 1443 | 69 |
| 1990 | 1385 | 68 |
| 1989 | 1244 | 59 |
| 1988 | 1137 | 60 |
| 1987 | 1064 | 62 |
| 1986 | 997 | 62 |