| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 1259403 | 99 |
| 2015 | 1246199 | 99 |
| 2014 | 1233760 | 96 |
| 2013 | 1221764 | 96 |
| 2012 | 1209886 | 97 |
| 2011 | 1198123 | 96 |
| 2010 | 1186491 | 96 |
| 2009 | 1174971 | 96 |
| 2008 | 1163579 | 96 |
| 2007 | 1152266 | 95 |
| 2006 | 1141079 | 95 |
| 2005 | 1130001 | 97 |
| 2004 | 1119044 | 97 |
| 2003 | 1108165 | 97 |
| 2002 | 1097406 | 96 |
| 2001 | 1086751 | 95 |
| 2000 | 1078135 | 94 |
| 1999 | 1072107 | 94 |
| 1998 | 1066120 | 93 |
| 1997 | 1060167 | 92 |
| 1996 | 1054256 | 91 |
| 1995 | 1048361 | 89 |
| 1994 | 1042507 | 89 |
| 1993 | 1036686 | 90 |
| 1992 | 1030905 | 90 |
| 1991 | 1025141 | 89 |
| 1990 | 1005859 | 89 |
| 1989 | 969394 | 87 |
| 1988 | 934299 | 84 |
| 1987 | 900382 | 86 |
| 1986 | 867741 | 86 |