Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 15.4 | |
| 1991 | 16 | |
| 1992 | 16 | |
| 1993 | 16 | |
| 1994 | 17.2 | |
| 1995 | 17.6 | |
| 1996 | 18 | |
| 1997 | 23.6 | |
| 1998 | 24.2 | |
| 1999 | 24.2 | |
| 2000 | 24.3 | |
| 2001 | 25.4 | |
| 2002 | 25.6 | |
| 2003 | 25.6 | |
| 2004 | 26.3 | |
| 2005 | 28 | |
| 2006 | 28 | |
| 2007 | 28 | |
| 2008 | 28 | |
| 2009 | 28 | |
| 2010 | 28 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 3437 | |
| 1991 | 3574 | |
| 1992 | 3574 | |
| 1993 | 3574 | |
| 1994 | 3823 | |
| 1995 | 3922 | |
| 1996 | 4007 | |
| 1997 | 5267 | |
| 1998 | 5384 | |
| 1999 | 5384 | |
| 2000 | 5410 | |
| 2001 | 5665 | |
| 2002 | 5700 | |
| 2003 | 5701 | |
| 2004 | 5855 | |
| 2005 | 6230 | |
| 2006 | 6230 | |
| 2007 | 6230 | |
| 2008 | 6230 | |
| 2009 | 6230 | |
| 2010 | 6230 | |
Source: United Nations Statistics Division
