| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 122.2 | 86 |
| 2015 | 121.7 | 85 |
| 2014 | 121.1 | 82 |
| 2013 | 120.5 | 82 |
| 2012 | 119.9 | 82 |
| 2011 | 119.3 | 82 |
| 2010 | 118.8 | 82 |
| 2009 | 118.2 | 81 |
| 2008 | 117.6 | 80 |
| 2007 | 116.9 | 79 |
| 2006 | 116.2 | 79 |
| 2005 | 115.4 | 78 |
| 2004 | 114.5 | 79 |
| 2003 | 113.6 | 79 |
| 2002 | 112.9 | 79 |
| 2001 | 112.1 | 78 |
| 2000 | 111.2 | 80 |
| 1999 | 110.5 | 77 |
| 1998 | 109.9 | 77 |
| 1997 | 109.5 | 76 |
| 1996 | 109.1 | 74 |
| 1995 | 108.7 | 73 |
| 1994 | 108.3 | 73 |
| 1993 | 107.9 | 73 |
| 1992 | 107.5 | 73 |
| 1991 | 106.9 | 74 |
| 1990 | 106.9 | 70 |
| 1989 | 106.3 | 69 |
| 1988 | 105.6 | 69 |
| 1987 | 105 | 68 |
| 1986 | 104.3 | 66 |