| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 29402873 | 10 |
| 2015 | 28306484 | 10 |
| 2014 | 27277591 | 10 |
| 2013 | 26302579 | 10 |
| 2012 | 25366174 | 11 |
| 2011 | 24464294 | 11 |
| 2010 | 23599164 | 12 |
| 2009 | 22768005 | 12 |
| 2008 | 21970458 | 12 |
| 2007 | 21201912 | 12 |
| 2006 | 20464291 | 12 |
| 2005 | 19724368 | 12 |
| 2004 | 19006184 | 12 |
| 2003 | 18317913 | 12 |
| 2002 | 17660742 | 13 |
| 2001 | 17032094 | 13 |
| 2000 | 16431274 | 13 |
| 1999 | 15854375 | 13 |
| 1998 | 15302574 | 14 |
| 1997 | 14773817 | 16 |
| 1996 | 14267623 | 16 |
| 1995 | 13780851 | 16 |
| 1994 | 13314524 | 16 |
| 1993 | 12866988 | 17 |
| 1992 | 12437916 | 17 |
| 1991 | 11961842 | 17 |
| 1990 | 11420718 | 17 |
| 1989 | 10867956 | 17 |
| 1988 | 10346474 | 19 |
| 1987 | 9852332 | 21 |
| 1986 | 9385896 | 21 |