| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 5153 | 90 |
| 2015 | 4922 | 100 |
| 2014 | 5046 | 104 |
| 2013 | 4763 | 111 |
| 2012 | 4547 | 112 |
| 2011 | 4353 | 115 |
| 2010 | 3652 | 118 |
| 2009 | 3369 | 118 |
| 2008 | 4178 | 114 |
| 2007 | 4079 | 107 |
| 2006 | 3750 | 105 |
| 2005 | 3659 | 99 |
| 2004 | 3333 | 98 |
| 2003 | 2836 | 95 |
| 2002 | 2259 | 100 |
| 2001 | 2039 | 98 |
| 2000 | 2076 | 98 |
| 1999 | 2408 | 93 |
| 1998 | 2070 | 99 |
| 1997 | 2641 | 90 |
| 1996 | 2714 | 87 |
| 1995 | 2541 | 87 |
| 1994 | 2384 | 81 |
| 1993 | 2166 | 81 |
| 1992 | 2057 | 81 |
| 1991 | 1882 | 83 |
| 1990 | 1835 | 87 |
| 1989 | 1632 | 83 |
| 1988 | 1535 | 84 |
| 1987 | 1632 | 80 |
| 1986 | 1796 | 71 |