| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 7908.7 | 3 |
| 2015 | 7806.8 | 3 |
| 2014 | 7714.7 | 3 |
| 2013 | 7636.7 | 3 |
| 2012 | 7524.7 | 3 |
| 2011 | 7363.2 | 3 |
| 2010 | 7231.8 | 3 |
| 2009 | 7125.1 | 3 |
| 2008 | 6913.4 | 3 |
| 2007 | 6602.3 | 3 |
| 2006 | 6342 | 4 |
| 2005 | 6191.2 | 4 |
| 2004 | 6047.4 | 4 |
| 2003 | 5989.6 | 4 |
| 2002 | 6186.6 | 4 |
| 2001 | 6176.1 | 4 |
| 2000 | 6011.8 | 4 |
| 1999 | 5908.5 | 4 |
| 1998 | 5861.5 | 4 |
| 1997 | 5665.7 | 4 |
| 1996 | 5478.7 | 4 |
| 1995 | 5260.5 | 4 |
| 1994 | 5103.1 | 4 |
| 1993 | 4945.5 | 4 |
| 1992 | 4821.9 | 4 |
| 1991 | 4679.2 | 4 |
| 1990 | 4548 | 4 |
| 1989 | 4374.5 | 4 |
| 1988 | 4247.9 | 4 |
| 1987 | 4141.5 | 4 |
| 1986 | 4079.7 | 4 |