| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 1360422 | 93 |
| 2015 | 1344304 | 93 |
| 2014 | 1328793 | 93 |
| 2013 | 1313685 | 92 |
| 2012 | 1298749 | 92 |
| 2011 | 1283942 | 92 |
| 2010 | 1269324 | 92 |
| 2009 | 1254873 | 92 |
| 2008 | 1240606 | 92 |
| 2007 | 1226462 | 92 |
| 2006 | 1212498 | 93 |
| 2005 | 1188943 | 94 |
| 2004 | 1161455 | 94 |
| 2003 | 1134529 | 95 |
| 2002 | 1108263 | 94 |
| 2001 | 1082605 | 96 |
| 2000 | 1062905 | 97 |
| 1999 | 1046000 | 97 |
| 1998 | 1029386 | 95 |
| 1997 | 1013037 | 94 |
| 1996 | 996969 | 94 |
| 1995 | 975594 | 96 |
| 1994 | 952156 | 97 |
| 1993 | 929282 | 97 |
| 1992 | 906987 | 97 |
| 1991 | 885168 | 97 |
| 1990 | 869681 | 96 |
| 1989 | 857192 | 94 |
| 1988 | 844899 | 92 |
| 1987 | 832749 | 91 |
| 1986 | 820790 | 90 |