Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 8.7 | |
| 1991 | 8.9 | |
| 1992 | 8.9 | |
| 1993 | 8.9 | |
| 1994 | 9.1 | |
| 1995 | 9.1 | |
| 1996 | 9.6 | |
| 1997 | 9.7 | |
| 1998 | 9.8 | |
| 1999 | 9.8 | |
| 2000 | 10.8 | |
| 2001 | 10.8 | |
| 2002 | 10.9 | |
| 2003 | 10.9 | |
| 2004 | 10.9 | |
| 2005 | 10.9 | |
| 2006 | 10.9 | |
| 2007 | 10.9 | |
| 2008 | 10.9 | |
| 2009 | 10.9 | |
| 2010 | 10.9 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 26087 | |
| 1991 | 26478 | |
| 1992 | 26710 | |
| 1993 | 26723 | |
| 1994 | 27037 | |
| 1995 | 27213 | |
| 1996 | 28544 | |
| 1997 | 28908 | |
| 1998 | 29182 | |
| 1999 | 29350 | |
| 2000 | 32136 | |
| 2001 | 32139 | |
| 2002 | 32453 | |
| 2003 | 32454 | |
| 2004 | 32454 | |
| 2005 | 32454 | |
| 2006 | 32454 | |
| 2007 | 32454 | |
| 2008 | 32454 | |
| 2009 | 32454 | |
| 2010 | 32454 | |
Source: United Nations Statistics Division