| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 69.7 | 143 |
| 2015 | 70 | 143 |
| 2014 | 70.5 | 141 |
| 2013 | 71.2 | 141 |
| 2012 | 71.9 | 141 |
| 2011 | 72.7 | 142 |
| 2010 | 73.3 | 142 |
| 2009 | 73.7 | 140 |
| 2008 | 74.2 | 139 |
| 2007 | 74.9 | 139 |
| 2006 | 75.6 | 139 |
| 2005 | 76.7 | 138 |
| 2004 | 78 | 137 |
| 2003 | 78.9 | 137 |
| 2002 | 79.3 | 137 |
| 2001 | 79.6 | 136 |
| 2000 | 79.6 | 136 |
| 1999 | 79.4 | 136 |
| 1998 | 79.2 | 134 |
| 1997 | 79.1 | 134 |
| 1996 | 78.9 | 134 |
| 1995 | 78.6 | 134 |
| 1994 | 78.3 | 135 |
| 1993 | 78.2 | 135 |
| 1992 | 78.1 | 134 |
| 1991 | 78 | 134 |
| 1990 | 77.9 | 135 |
| 1989 | 78.1 | 134 |
| 1988 | 78.6 | 134 |
| 1987 | 79.1 | 134 |
| 1986 | 79.6 | 134 |