| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 312.9 | 88 |
| 2015 | 315.4 | 88 |
| 2014 | 317.6 | 88 |
| 2013 | 319.7 | 88 |
| 2012 | 321.7 | 88 |
| 2011 | 323.7 | 89 |
| 2010 | 326.6 | 88 |
| 2009 | 328.3 | 88 |
| 2008 | 330 | 88 |
| 2007 | 331.7 | 87 |
| 2006 | 335.1 | 86 |
| 2005 | 338.4 | 86 |
| 2004 | 341.4 | 86 |
| 2003 | 344.2 | 85 |
| 2002 | 346.9 | 85 |
| 2001 | 349.2 | 85 |
| 2000 | 351.9 | 85 |
| 1999 | 355 | 83 |
| 1998 | 358.3 | 83 |
| 1997 | 361.7 | 82 |
| 1996 | 364.8 | 82 |
| 1995 | 367.2 | 82 |
| 1994 | 374.5 | 80 |
| 1993 | 374.9 | 80 |
| 1992 | 374.4 | 80 |
| 1991 | 373.9 | 78 |
| 1990 | 376.3 | 77 |