| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 78.2 | 147 |
| 2015 | 75.1 | 147 |
| 2014 | 73.4 | 147 |
| 2013 | 72.6 | 147 |
| 2012 | 72.4 | 147 |
| 2011 | 71.8 | 148 |
| 2010 | 70.3 | 148 |
| 2009 | 65.7 | 150 |
| 2008 | 60.2 | 151 |
| 2007 | 54.5 | 153 |
| 2006 | 49 | 154 |
| 2005 | 44.1 | 154 |
| 2004 | 40.2 | 154 |
| 2003 | 37.1 | 154 |
| 2002 | 34.6 | 154 |
| 2001 | 32.5 | 154 |
| 2000 | 30.5 | 154 |
| 1999 | 29.1 | 155 |
| 1998 | 27.9 | 157 |
| 1997 | 27 | 157 |
| 1996 | 26.3 | 157 |
| 1995 | 25.7 | 157 |
| 1994 | 24.7 | 157 |
| 1993 | 23.8 | 157 |
| 1992 | 23 | 158 |
| 1991 | 22.2 | 159 |
| 1990 | 21.5 | 159 |