| 时间 | 值 （美元/人） | 世界排名 |
|---|---|---|
| 2016 | 185 | 44 |
| 2015 | 167 | 51 |
| 2014 | 179 | 51 |
| 2013 | 198 | 48 |
| 2012 | 204 | 47 |
| 2011 | 236 | 43 |
| 2010 | 238 | 40 |
| 2009 | 260 | 39 |
| 2008 | 281 | 40 |
| 2007 | 263 | 38 |
| 2006 | 239 | 37 |
| 2005 | 239 | 36 |
| 2004 | 200 | 36 |
| 2003 | 185 | 36 |
| 2002 | 147 | 37 |
| 2001 | 116 | 41 |
| 2000 | 113 | 40 |
| 1999 | 117 | 41 |
| 1998 | 113 | 41 |
| 1997 | 96 | 46 |
| 1996 | 109 | 42 |
| 1995 | 103 | 44 |
| 1994 | 91 | 41 |
| 1993 | 79 | 42 |