| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 38139625 | 1 |
| 2015 | 38001018 | 1 |
| 2014 | 37832892 | 1 |
| 2013 | 37580652 | 1 |
| 2012 | 37330094 | 1 |
| 2011 | 37081207 | 1 |
| 2010 | 36833979 | 1 |
| 2009 | 36588399 | 1 |
| 2008 | 36344792 | 1 |
| 2007 | 36102141 | 1 |
| 2006 | 35861441 | 1 |
| 2005 | 35621544 | 1 |
| 2004 | 35381220 | 1 |
| 2003 | 35141860 | 1 |
| 2002 | 34904446 | 1 |
| 2001 | 34668636 | 1 |
| 2000 | 34449908 | 1 |
| 1999 | 34276928 | 1 |
| 1998 | 34105053 | 1 |
| 1997 | 33934040 | 1 |
| 1996 | 33764118 | 1 |
| 1995 | 33586573 | 1 |
| 1994 | 33386562 | 1 |
| 1993 | 33187742 | 1 |
| 1992 | 32990378 | 1 |
| 1991 | 32793648 | 1 |
| 1990 | 32530003 | 1 |
| 1989 | 32068104 | 1 |
| 1988 | 31613386 | 1 |
| 1987 | 31163888 | 1 |
| 1986 | 30721387 | 1 |