| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 67.9 | 150 |
| 2015 | 67.7 | 150 |
| 2014 | 67.5 | 150 |
| 2013 | 67.6 | 150 |
| 2012 | 67.5 | 150 |
| 2011 | 67.4 | 150 |
| 2010 | 67.1 | 150 |
| 2009 | 66.5 | 149 |
| 2008 | 66.9 | 148 |
| 2007 | 66.4 | 148 |
| 2006 | 66.1 | 148 |
| 2005 | 65.5 | 147 |
| 2004 | 63.7 | 147 |
| 2003 | 61.7 | 147 |
| 2002 | 59.7 | 147 |
| 2001 | 58.7 | 147 |
| 2000 | 57.7 | 147 |
| 1999 | 56.9 | 146 |
| 1998 | 56 | 146 |
| 1997 | 55 | 146 |
| 1996 | 53.9 | 146 |
| 1995 | 52.3 | 146 |
| 1994 | 50.8 | 145 |
| 1993 | 49.2 | 145 |
| 1992 | 47.6 | 145 |
| 1991 | 45.5 | 147 |
| 1990 | 46.4 | 145 |