| 时间 | 值 （美元/人） | 世界排名 |
|---|---|---|
| 2016 | 364 | 26 |
| 2015 | 323 | 30 |
| 2014 | 367 | 33 |
| 2013 | 385 | 29 |
| 2012 | 470 | 26 |
| 2011 | 475 | 27 |
| 2010 | 427 | 30 |
| 2009 | 402 | 31 |
| 2008 | 362 | 35 |
| 2007 | 317 | 34 |
| 2006 | 325 | 31 |
| 2005 | 347 | 30 |
| 2004 | 355 | 27 |
| 2003 | 333 | 25 |
| 2002 | 309 | 24 |
| 2001 | 321 | 23 |
| 2000 | 359 | 20 |
| 1999 | 341 | 22 |
| 1998 | 299 | 26 |
| 1997 | 322 | 26 |
| 1996 | 350 | 25 |
| 1995 | 398 | 20 |
| 1994 | 362 | 18 |
| 1993 | 332 | 20 |
| 1992 | 290 | 26 |
| 1991 | 265 | 28 |
| 1990 | 233 | 31 |
| 1989 | 227 | 27 |
| 1988 | 230 | 27 |
| 1987 | 194 | 28 |
| 1986 | 160 | 26 |