| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 1145475 | 109 |
| 2015 | 1147486 | 108 |
| 2014 | 1149575 | 106 |
| 2013 | 1143972 | 105 |
| 2012 | 1138396 | 102 |
| 2011 | 1132832 | 101 |
| 2010 | 1127303 | 100 |
| 2009 | 1121801 | 98 |
| 2008 | 1116333 | 98 |
| 2007 | 1110877 | 97 |
| 2006 | 1105455 | 99 |
| 2005 | 1100060 | 99 |
| 2004 | 1094698 | 99 |
| 2003 | 1089347 | 100 |
| 2002 | 1084031 | 97 |
| 2001 | 1088126 | 93 |
| 2000 | 1099798 | 91 |
| 1999 | 1111629 | 90 |
| 1998 | 1123569 | 89 |
| 1997 | 1135639 | 84 |
| 1996 | 1147821 | 82 |
| 1995 | 1160168 | 80 |
| 1994 | 1172630 | 78 |
| 1993 | 1185226 | 77 |
| 1992 | 1197940 | 75 |
| 1991 | 1210826 | 73 |
| 1990 | 1223833 | 72 |
| 1989 | 1236979 | 72 |
| 1988 | 1232999 | 71 |
| 1987 | 1214148 | 70 |
| 1986 | 1195610 | 70 |