| 时间 | 值 （美元/人） | 世界排名 |
|---|---|---|
| 2016 | 718 | 11 |
| 2015 | 714 | 13 |
| 2014 | 735 | 14 |
| 2013 | 681 | 16 |
| 2012 | 636 | 17 |
| 2011 | 621 | 22 |
| 2010 | 569 | 21 |
| 2009 | 498 | 25 |
| 2008 | 531 | 25 |
| 2007 | 570 | 22 |
| 2006 | 520 | 22 |
| 2005 | 460 | 24 |
| 2004 | 371 | 25 |
| 2003 | 331 | 26 |
| 2002 | 296 | 26 |
| 2001 | 273 | 27 |
| 2000 | 294 | 26 |
| 1999 | 259 | 30 |
| 1998 | 226 | 33 |
| 1997 | 323 | 25 |
| 1996 | 360 | 24 |
| 1995 | 357 | 23 |
| 1994 | 303 | 25 |
| 1993 | 280 | 24 |
| 1992 | 265 | 28 |
| 1991 | 253 | 30 |
| 1990 | 236 | 30 |
| 1989 | 223 | 28 |
| 1988 | 184 | 30 |
| 1987 | 145 | 32 |
| 1986 | 129 | 31 |