| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 2507309 | 67 |
| 2015 | 2439775 | 68 |
| 2014 | 2375913 | 68 |
| 2013 | 2314837 | 67 |
| 2012 | 2255331 | 65 |
| 2011 | 2197197 | 66 |
| 2010 | 2140638 | 66 |
| 2009 | 2642763 | 59 |
| 2008 | 2516051 | 59 |
| 2007 | 2395089 | 62 |
| 2006 | 2280097 | 63 |
| 2005 | 2170626 | 64 |
| 2004 | 2066551 | 65 |
| 2003 | 1967052 | 65 |
| 2002 | 1871226 | 66 |
| 2001 | 1780069 | 69 |
| 2000 | 1693468 | 71 |
| 1999 | 1610859 | 72 |
| 1998 | 1569463 | 73 |
| 1997 | 1529130 | 74 |
| 1996 | 1489888 | 73 |
| 1995 | 1427274 | 73 |
| 1994 | 1367371 | 73 |
| 1993 | 1309983 | 73 |
| 1992 | 1255078 | 74 |
| 1991 | 1193105 | 78 |
| 1990 | 1134271 | 79 |
| 1989 | 1078338 | 79 |
| 1988 | 1025234 | 82 |
| 1987 | 974610 | 83 |
| 1986 | 926550 | 83 |