| 时间 | 值 （美元） | 世界排名 |
|---|---|---|
| 2016 | 5676 | 53 |
| 2015 | 5576 | 67 |
| 2014 | 5217 | 69 |
| 2013 | 5075 | 71 |
| 2012 | 4955 | 69 |
| 2011 | 4806 | 69 |
| 2010 | 4740 | 78 |
| 2009 | 4528 | 68 |
| 2008 | 4462 | 68 |
| 2007 | 4234 | 71 |
| 2006 | 4295 | 67 |
| 2005 | 4171 | 64 |
| 2004 | 3905 | 65 |
| 2003 | 3814 | 65 |
| 2002 | 3574 | 63 |
| 2001 | 3407 | 61 |
| 2000 | 3368 | 59 |
| 1999 | 3439 | 55 |
| 1998 | 3493 | 55 |
| 1997 | 3008 | 57 |
| 1996 | 2829 | 57 |
| 1995 | 2846 | 58 |
| 1994 | 3063 | 52 |
| 1993 | 3210 | 49 |
| 1992 | 3143 | 46 |
| 1991 | 2977 | 49 |
| 1990 | 2574 | 51 |
| 1989 | 3010 | 43 |
| 1988 | 2469 | 46 |
| 1987 | 2754 | 44 |
| 1986 | 2888 | 39 |