| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 68.3 | 149 |
| 2015 | 68.3 | 149 |
| 2014 | 68.3 | 149 |
| 2013 | 68.8 | 149 |
| 2012 | 69 | 148 |
| 2011 | 69.9 | 149 |
| 2010 | 69.3 | 149 |
| 2009 | 69.8 | 147 |
| 2008 | 70.2 | 147 |
| 2007 | 69.6 | 147 |
| 2006 | 69.7 | 146 |
| 2005 | 67.8 | 146 |
| 2004 | 68.3 | 146 |
| 2003 | 68.3 | 145 |
| 2002 | 66.5 | 145 |
| 2001 | 67.9 | 144 |
| 2000 | 67.8 | 144 |
| 1999 | 67.6 | 144 |
| 1998 | 68.4 | 143 |
| 1997 | 69.3 | 143 |
| 1996 | 69.7 | 143 |
| 1995 | 70.2 | 141 |
| 1994 | 73 | 140 |
| 1993 | 76 | 138 |
| 1992 | 79.5 | 138 |
| 1991 | 82.5 | 135 |
| 1990 | 84.5 | 134 |