| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 6254570 | 41 |
| 2015 | 6009010 | 41 |
| 2014 | 5768541 | 41 |
| 2013 | 5483216 | 41 |
| 2012 | 5212117 | 43 |
| 2011 | 4954528 | 43 |
| 2010 | 4709770 | 43 |
| 2009 | 4477200 | 43 |
| 2008 | 4256207 | 44 |
| 2007 | 4046208 | 46 |
| 2006 | 3846654 | 47 |
| 2005 | 3657020 | 48 |
| 2004 | 3477052 | 48 |
| 2003 | 3305551 | 49 |
| 2002 | 3142795 | 50 |
| 2001 | 2988118 | 51 |
| 2000 | 2841310 | 52 |
| 1999 | 2701399 | 53 |
| 1998 | 2568611 | 53 |
| 1997 | 2442403 | 54 |
| 1996 | 2322606 | 54 |
| 1995 | 2208426 | 54 |
| 1994 | 2100050 | 56 |
| 1993 | 1997035 | 58 |
| 1992 | 1899246 | 59 |
| 1991 | 1806033 | 60 |
| 1990 | 1717551 | 60 |
| 1989 | 1633439 | 61 |
| 1988 | 1553586 | 63 |
| 1987 | 1477464 | 66 |
| 1986 | 1396683 | 67 |