| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 5908 | 85 |
| 2015 | 5815 | 93 |
| 2014 | 5942 | 98 |
| 2013 | 6171 | 102 |
| 2012 | 5860 | 102 |
| 2011 | 5491 | 107 |
| 2010 | 5075 | 103 |
| 2009 | 4212 | 107 |
| 2008 | 4379 | 109 |
| 2007 | 3972 | 109 |
| 2006 | 3369 | 111 |
| 2005 | 2894 | 112 |
| 2004 | 2660 | 107 |
| 2003 | 2359 | 108 |
| 2002 | 2096 | 107 |
| 2001 | 1893 | 102 |
| 2000 | 2008 | 101 |
| 1999 | 2033 | 101 |
| 1998 | 1845 | 105 |
| 1997 | 2467 | 91 |
| 1996 | 3043 | 82 |
| 1995 | 2845 | 84 |
| 1994 | 2490 | 80 |
| 1993 | 2208 | 80 |
| 1992 | 1927 | 83 |
| 1991 | 1716 | 85 |
| 1990 | 1508 | 95 |
| 1989 | 1295 | 89 |
| 1988 | 1123 | 94 |
| 1987 | 936 | 99 |
| 1986 | 813 | 100 |