| 时间 | 值 （美元/人） | 世界排名 |
|---|---|---|
| 2016 | 321 | 28 |
| 2015 | 322 | 31 |
| 2014 | 370 | 32 |
| 2013 | 370 | 31 |
| 2012 | 403 | 29 |
| 2011 | 421 | 31 |
| 2010 | 423 | 31 |
| 2009 | 435 | 28 |
| 2008 | 484 | 27 |
| 2007 | 444 | 27 |
| 2006 | 389 | 27 |
| 2005 | 366 | 28 |
| 2004 | 356 | 26 |
| 2003 | 305 | 28 |
| 2002 | 248 | 31 |
| 2001 | 250 | 29 |
| 2000 | 253 | 29 |
| 1999 | 275 | 26 |
| 1998 | 257 | 29 |
| 1997 | 246 | 31 |
| 1996 | 283 | 30 |
| 1995 | 288 | 30 |
| 1994 | 255 | 28 |
| 1993 | 255 | 27 |
| 1992 | 313 | 24 |
| 1991 | 300 | 25 |
| 1990 | 301 | 26 |
| 1989 | 240 | 26 |
| 1988 | 230 | 26 |
| 1987 | 205 | 26 |
| 1986 | 163 | 25 |