| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 27745326 | 11 |
| 2015 | 27191206 | 11 |
| 2014 | 26675538 | 11 |
| 2013 | 26189621 | 11 |
| 2012 | 25721457 | 10 |
| 2011 | 25270040 | 10 |
| 2010 | 24834428 | 10 |
| 2009 | 24413739 | 10 |
| 2008 | 24007705 | 10 |
| 2007 | 23613910 | 10 |
| 2006 | 23233287 | 10 |
| 2005 | 22864619 | 10 |
| 2004 | 22507769 | 10 |
| 2003 | 22160696 | 10 |
| 2002 | 21822765 | 10 |
| 2001 | 21494727 | 10 |
| 2000 | 21176516 | 10 |
| 1999 | 20915453 | 10 |
| 1998 | 20669663 | 10 |
| 1997 | 20436935 | 10 |
| 1996 | 20216096 | 10 |
| 1995 | 20004986 | 10 |
| 1994 | 19803410 | 10 |
| 1993 | 19610130 | 10 |
| 1992 | 19424585 | 9 |
| 1991 | 19245324 | 9 |
| 1990 | 18943750 | 9 |
| 1989 | 18397647 | 9 |
| 1988 | 17869599 | 9 |
| 1987 | 17356844 | 9 |
| 1986 | 16860932 | 9 |