| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 12259631 | 14 |
| 2015 | 12165704 | 14 |
| 2014 | 12062731 | 14 |
| 2013 | 11909468 | 14 |
| 2012 | 11758152 | 13 |
| 2011 | 11608759 | 13 |
| 2010 | 11461264 | 13 |
| 2009 | 11315643 | 13 |
| 2008 | 11172069 | 13 |
| 2007 | 11029929 | 13 |
| 2006 | 10889788 | 13 |
| 2005 | 10751428 | 12 |
| 2004 | 10615013 | 12 |
| 2003 | 10479960 | 12 |
| 2002 | 10336816 | 11 |
| 2001 | 10169198 | 11 |
| 2000 | 10004523 | 11 |
| 1999 | 9842072 | 12 |
| 1998 | 9682476 | 11 |
| 1997 | 9512887 | 12 |
| 1996 | 9334368 | 12 |
| 1995 | 9200994 | 12 |
| 1994 | 9110941 | 11 |
| 1993 | 9066913 | 11 |
| 1992 | 9067511 | 10 |
| 1991 | 9040520 | 10 |
| 1990 | 8986631 | 10 |
| 1989 | 8933063 | 10 |
| 1988 | 8857931 | 10 |
| 1987 | 8764189 | 10 |
| 1986 | 8671565 | 9 |