| 时间 | 值 （人/平方公里） | 世界排名 |
|---|---|---|
| 2016 | 346807100 | 1 |
| 2015 | 336966377 | 1 |
| 2014 | 327156299 | 1 |
| 2013 | 316815371 | 1 |
| 2012 | 306874732 | 1 |
| 2011 | 297291077 | 1 |
| 2010 | 287742300 | 1 |
| 2009 | 277904720 | 1 |
| 2008 | 268473463 | 1 |
| 2007 | 259393323 | 1 |
| 2006 | 250685886 | 1 |
| 2005 | 242321708 | 1 |
| 2004 | 234296524 | 1 |
| 2003 | 226518447 | 1 |
| 2002 | 218886023 | 1 |
| 2001 | 211444175 | 1 |
| 2000 | 202097801 | 1 |
| 1999 | 189252729 | 1 |
| 1998 | 177566961 | 1 |
| 1997 | 166890327 | 1 |
| 1996 | 157147722 | 1 |
| 1995 | 148200164 | 1 |
| 1994 | 139975012 | 1 |
| 1993 | 132385588 | 1 |
| 1992 | 125376763 | 1 |
| 1991 | 118864302 | 1 |
| 1990 | 112794719 | 1 |
| 1989 | 108541243 | 1 |
| 1988 | 104565222 | 1 |
| 1987 | 100815256 | 2 |
| 1986 | 97274012 | 2 |