| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 1708239 | 88 |
| 2015 | 1672810 | 88 |
| 2014 | 1637866 | 88 |
| 2013 | 1603358 | 88 |
| 2012 | 1569576 | 88 |
| 2011 | 1536506 | 88 |
| 2010 | 1504133 | 87 |
| 2009 | 1472442 | 86 |
| 2008 | 1441462 | 87 |
| 2007 | 1411051 | 86 |
| 2006 | 1381322 | 86 |
| 2005 | 1352219 | 85 |
| 2004 | 1323768 | 84 |
| 2003 | 1295840 | 84 |
| 2002 | 1268538 | 83 |
| 2001 | 1241812 | 82 |
| 2000 | 1215684 | 82 |
| 1999 | 1174681 | 85 |
| 1998 | 1133004 | 86 |
| 1997 | 1092806 | 90 |
| 1996 | 1054086 | 92 |
| 1995 | 1016637 | 93 |
| 1994 | 980567 | 92 |
| 1993 | 945777 | 93 |
| 1992 | 912266 | 95 |
| 1991 | 879855 | 98 |
| 1990 | 848639 | 99 |
| 1989 | 821144 | 98 |
| 1988 | 794969 | 97 |
| 1987 | 769559 | 97 |
| 1986 | 744995 | 96 |