| 时间 | 值 （美元/人） | 世界排名 |
|---|---|---|
| 2016 | 282 | 30 |
| 2015 | 283 | 34 |
| 2014 | 303 | 38 |
| 2013 | 307 | 37 |
| 2012 | 272 | 37 |
| 2011 | 244 | 41 |
| 2010 | 224 | 44 |
| 2009 | 172 | 48 |
| 2008 | 169 | 55 |
| 2007 | 125 | 58 |
| 2006 | 118 | 52 |
| 2005 | 104 | 54 |
| 2004 | 84 | 58 |
| 2003 | 81 | 55 |
| 2002 | 103 | 44 |
| 2001 | 157 | 34 |
| 2000 | 167 | 35 |
| 1999 | 174 | 36 |
| 1998 | 174 | 36 |
| 1997 | 176 | 36 |
| 1996 | 177 | 34 |
| 1995 | 162 | 35 |
| 1994 | 141 | 33 |
| 1993 | 132 | 34 |
| 1992 | 116 | 35 |
| 1991 | 86 | 42 |
| 1990 | 106 | 39 |
| 1989 | 96 | 40 |
| 1988 | 85 | 40 |
| 1987 | 73 | 42 |
| 1986 | 80 | 38 |