| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 1281289 | 98 |
| 2015 | 1268052 | 95 |
| 2014 | 1254808 | 95 |
| 2013 | 1238666 | 95 |
| 2012 | 1222732 | 95 |
| 2011 | 1206959 | 94 |
| 2010 | 1192357 | 95 |
| 2009 | 1178851 | 95 |
| 2008 | 1165516 | 95 |
| 2007 | 1152295 | 94 |
| 2006 | 1139475 | 97 |
| 2005 | 1127024 | 98 |
| 2004 | 1114726 | 98 |
| 2003 | 1102529 | 98 |
| 2002 | 1090481 | 97 |
| 2001 | 1082059 | 97 |
| 2000 | 1077131 | 95 |
| 1999 | 1072211 | 93 |
| 1998 | 1067321 | 92 |
| 1997 | 1062331 | 91 |
| 1996 | 1055625 | 90 |
| 1995 | 1048351 | 90 |
| 1994 | 1042122 | 90 |
| 1993 | 1038026 | 89 |
| 1992 | 1036008 | 88 |
| 1991 | 1035100 | 88 |
| 1990 | 1035290 | 86 |
| 1989 | 1036500 | 82 |
| 1988 | 1040126 | 80 |
| 1987 | 1045180 | 80 |
| 1986 | 1050252 | 79 |