| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 2181105 | 74 |
| 2015 | 2106682 | 75 |
| 2014 | 2031783 | 74 |
| 2013 | 1938676 | 76 |
| 2012 | 1849835 | 78 |
| 2011 | 1765065 | 78 |
| 2010 | 1684180 | 81 |
| 2009 | 1641293 | 81 |
| 2008 | 1611217 | 80 |
| 2007 | 1581692 | 79 |
| 2006 | 1552708 | 79 |
| 2005 | 1524256 | 78 |
| 2004 | 1496363 | 77 |
| 2003 | 1468906 | 77 |
| 2002 | 1441990 | 76 |
| 2001 | 1415566 | 76 |
| 2000 | 1389662 | 75 |
| 1999 | 1364163 | 75 |
| 1998 | 1339166 | 75 |
| 1997 | 1314627 | 73 |
| 1996 | 1290570 | 73 |
| 1995 | 1266889 | 74 |
| 1994 | 1216723 | 75 |
| 1993 | 1168543 | 79 |
| 1992 | 1122334 | 81 |
| 1991 | 1091101 | 83 |
| 1990 | 1061850 | 81 |
| 1989 | 1033385 | 81 |
| 1988 | 1005719 | 82 |
| 1987 | 978721 | 81 |
| 1986 | 952484 | 80 |