| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 7074841 | 38 |
| 2015 | 6775211 | 39 |
| 2014 | 6492631 | 39 |
| 2013 | 6224275 | 40 |
| 2012 | 5967151 | 40 |
| 2011 | 5720785 | 40 |
| 2010 | 5484719 | 40 |
| 2009 | 5258517 | 40 |
| 2008 | 5042053 | 41 |
| 2007 | 4834049 | 41 |
| 2006 | 4550833 | 42 |
| 2005 | 4284264 | 42 |
| 2004 | 4033699 | 42 |
| 2003 | 3797208 | 44 |
| 2002 | 3574927 | 46 |
| 2001 | 3365702 | 46 |
| 2000 | 3169028 | 47 |
| 1999 | 2983391 | 48 |
| 1998 | 2808901 | 49 |
| 1997 | 2644652 | 50 |
| 1996 | 2490249 | 50 |
| 1995 | 2343753 | 51 |
| 1994 | 2206094 | 53 |
| 1993 | 2076551 | 55 |
| 1992 | 1949038 | 57 |
| 1991 | 1829044 | 59 |
| 1990 | 1716595 | 61 |
| 1989 | 1611067 | 63 |
| 1988 | 1512165 | 66 |
| 1987 | 1419093 | 68 |
| 1986 | 1331871 | 68 |