| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 13661426 | 12 |
| 2015 | 13122829 | 12 |
| 2014 | 12613579 | 13 |
| 2013 | 12128609 | 13 |
| 2012 | 11662285 | 14 |
| 2011 | 11212677 | 14 |
| 2010 | 10780986 | 14 |
| 2009 | 10365915 | 15 |
| 2008 | 9967363 | 15 |
| 2007 | 9583098 | 16 |
| 2006 | 9214146 | 17 |
| 2005 | 8859399 | 18 |
| 2004 | 8518770 | 18 |
| 2003 | 8190352 | 18 |
| 2002 | 7875021 | 18 |
| 2001 | 7571830 | 18 |
| 2000 | 7280706 | 19 |
| 1999 | 7000018 | 20 |
| 1998 | 6730516 | 20 |
| 1997 | 6471389 | 20 |
| 1996 | 6222575 | 21 |
| 1995 | 5982680 | 22 |
| 1994 | 5752346 | 22 |
| 1993 | 5530879 | 22 |
| 1992 | 5318226 | 22 |
| 1991 | 5067003 | 22 |
| 1990 | 4764093 | 22 |
| 1989 | 4479291 | 24 |
| 1988 | 4211873 | 25 |
| 1987 | 3959747 | 25 |
| 1986 | 3723030 | 25 |