| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 2519 | 76 |
| 2015 | 2515 | 96 |
| 2014 | 2511 | 96 |
| 2013 | 2453 | 100 |
| 2012 | 2377 | 101 |
| 2011 | 2343 | 101 |
| 2010 | 2250 | 111 |
| 2009 | 2008 | 101 |
| 2008 | 2098 | 100 |
| 2007 | 1957 | 101 |
| 2006 | 1880 | 98 |
| 2005 | 1844 | 93 |
| 2004 | 1839 | 90 |
| 2003 | 1779 | 90 |
| 2002 | 1661 | 90 |
| 2001 | 1765 | 84 |
| 2000 | 1706 | 84 |
| 1999 | 1748 | 79 |
| 1998 | 1837 | 76 |
| 1997 | 1911 | 75 |
| 1996 | 1925 | 76 |
| 1995 | 1984 | 73 |
| 1994 | 2002 | 67 |
| 1993 | 1940 | 64 |
| 1992 | 1917 | 61 |
| 1991 | 1881 | 63 |