| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 42712536 | 7 |
| 2015 | 41456495 | 7 |
| 2014 | 40234014 | 7 |
| 2013 | 38899005 | 7 |
| 2012 | 37609115 | 7 |
| 2011 | 36362783 | 7 |
| 2010 | 35158504 | 7 |
| 2009 | 33994825 | 7 |
| 2008 | 32870342 | 7 |
| 2007 | 31783707 | 7 |
| 2006 | 30733618 | 7 |
| 2005 | 29718815 | 7 |
| 2004 | 28738088 | 7 |
| 2003 | 27790267 | 7 |
| 2002 | 26874222 | 8 |
| 2001 | 25988869 | 8 |
| 2000 | 25133155 | 8 |
| 1999 | 24306068 | 8 |
| 1998 | 23506630 | 8 |
| 1997 | 22733898 | 9 |
| 1996 | 21987972 | 9 |
| 1995 | 21264941 | 9 |
| 1994 | 20566992 | 9 |
| 1993 | 19892295 | 9 |
| 1992 | 19240944 | 10 |
| 1991 | 18609527 | 10 |
| 1990 | 17999961 | 10 |
| 1989 | 17410647 | 10 |
| 1988 | 16841678 | 10 |
| 1987 | 16290072 | 10 |
| 1986 | 15757508 | 10 |