| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 5014712 | 50 |
| 2015 | 4838884 | 50 |
| 2014 | 4673386 | 50 |
| 2013 | 4371031 | 51 |
| 2012 | 4088329 | 53 |
| 2011 | 3823292 | 54 |
| 2010 | 3575848 | 54 |
| 2009 | 3344493 | 54 |
| 2008 | 3128466 | 54 |
| 2007 | 2925921 | 55 |
| 2006 | 2736803 | 56 |
| 2005 | 2562410 | 57 |
| 2004 | 2402460 | 58 |
| 2003 | 2252228 | 59 |
| 2002 | 2111703 | 64 |
| 2001 | 1980065 | 64 |
| 2000 | 1856909 | 65 |
| 1999 | 1741211 | 69 |
| 1998 | 1632966 | 71 |
| 1997 | 1531544 | 73 |
| 1996 | 1436636 | 74 |
| 1995 | 1353365 | 74 |
| 1994 | 1281699 | 74 |
| 1993 | 1214038 | 76 |
| 1992 | 1150234 | 82 |
| 1991 | 1089813 | 85 |
| 1990 | 1032825 | 88 |
| 1989 | 978995 | 85 |
| 1988 | 928205 | 86 |
| 1987 | 880083 | 87 |
| 1986 | 834671 | 88 |