| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 28.7 | 162 |
| 2015 | 28.2 | 162 |
| 2014 | 27.4 | 162 |
| 2013 | 26.3 | 162 |
| 2012 | 25.5 | 162 |
| 2011 | 24.3 | 164 |
| 2010 | 23.8 | 164 |
| 2009 | 23.4 | 164 |
| 2008 | 22 | 164 |
| 2007 | 21.6 | 164 |
| 2006 | 21.3 | 164 |
| 2005 | 20.7 | 164 |
| 2004 | 20.1 | 164 |
| 2003 | 19.5 | 164 |
| 2002 | 19.5 | 164 |
| 2001 | 18.9 | 164 |
| 2000 | 18.9 | 164 |
| 1999 | 18.2 | 164 |
| 1998 | 17.6 | 164 |
| 1997 | 17.4 | 164 |
| 1996 | 17.1 | 164 |
| 1995 | 16.8 | 164 |
| 1994 | 17.2 | 161 |
| 1993 | 17 | 161 |
| 1992 | 17 | 161 |
| 1991 | 16.6 | 162 |
| 1990 | 16 | 162 |