| 时间 | 值 （万人） | 世界排名 |
|---|---|---|
| 2016 | 18599 | 7 |
| 2015 | 18118.2 | 7 |
| 2014 | 17646.1 | 7 |
| 2013 | 17182.9 | 7 |
| 2012 | 16729.7 | 7 |
| 2011 | 16287.7 | 7 |
| 2010 | 15857.8 | 7 |
| 2009 | 15440.2 | 7 |
| 2008 | 15034.7 | 7 |
| 2007 | 14641.7 | 8 |
| 2006 | 14261.4 | 9 |
| 2005 | 13893.9 | 9 |
| 2004 | 13539.4 | 9 |
| 2003 | 13197.3 | 9 |
| 2002 | 12866.7 | 9 |
| 2001 | 12546.3 | 10 |
| 2000 | 12235.2 | 10 |
| 1999 | 11932.7 | 10 |
| 1998 | 11638.6 | 10 |
| 1997 | 11352.3 | 10 |
| 1996 | 11073.3 | 10 |
| 1995 | 10801.1 | 10 |
| 1994 | 10535.6 | 10 |
| 1993 | 10276.2 | 10 |
| 1992 | 10022.2 | 10 |
| 1991 | 9772.6 | 10 |
| 1990 | 9527 | 10 |
| 1989 | 9284.4 | 10 |
| 1988 | 9045 | 10 |
| 1987 | 8810.2 | 10 |
| 1986 | 8581.9 | 10 |