| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 4841535 | 51 |
| 2015 | 4634875 | 52 |
| 2014 | 4436255 | 52 |
| 2013 | 4245861 | 53 |
| 2012 | 4063639 | 54 |
| 2011 | 3889237 | 53 |
| 2010 | 3722320 | 53 |
| 2009 | 3562567 | 53 |
| 2008 | 3409670 | 53 |
| 2007 | 3263335 | 53 |
| 2006 | 3123281 | 53 |
| 2005 | 2989237 | 53 |
| 2004 | 2860946 | 53 |
| 2003 | 2738161 | 54 |
| 2002 | 2620804 | 54 |
| 2001 | 2508477 | 54 |
| 2000 | 2401109 | 55 |
| 1999 | 2298059 | 56 |
| 1998 | 2199565 | 56 |
| 1997 | 2105292 | 58 |
| 1996 | 2015181 | 58 |
| 1995 | 1928694 | 60 |
| 1994 | 1846031 | 61 |
| 1993 | 1766910 | 61 |
| 1992 | 1691283 | 63 |
| 1991 | 1618697 | 65 |
| 1990 | 1549320 | 65 |
| 1989 | 1482916 | 68 |
| 1988 | 1419444 | 69 |
| 1987 | 1358525 | 69 |
| 1986 | 1300299 | 70 |