| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 292.5 | 137 |
| 2015 | 291.7 | 137 |
| 2014 | 290.6 | 138 |
| 2013 | 289.4 | 138 |
| 2012 | 288.2 | 138 |
| 2011 | 287.6 | 139 |
| 2010 | 287.7 | 139 |
| 2009 | 288.9 | 137 |
| 2008 | 290.8 | 137 |
| 2007 | 293.3 | 137 |
| 2006 | 295.9 | 137 |
| 2005 | 298.1 | 137 |
| 2004 | 300.1 | 137 |
| 2003 | 301.8 | 136 |
| 2002 | 303.4 | 136 |
| 2001 | 305.1 | 134 |
| 2000 | 307 | 133 |
| 1999 | 308.9 | 132 |
| 1998 | 310.9 | 131 |
| 1997 | 313.3 | 130 |
| 1996 | 316.8 | 128 |
| 1995 | 321.7 | 128 |
| 1994 | 328.4 | 126 |
| 1993 | 336.3 | 124 |
| 1992 | 344.3 | 124 |
| 1991 | 350.5 | 123 |
| 1990 | 353.8 | 121 |
| 1989 | 353.6 | 119 |
| 1988 | 350.5 | 119 |
| 1987 | 345.2 | 119 |
| 1986 | 339.2 | 119 |