Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 13.4 | |
| 1991 | 13.5 | |
| 1992 | 13.6 | |
| 1993 | 14 | |
| 1994 | 14.8 | |
| 1995 | 15.2 | |
| 1996 | 15.3 | |
| 1997 | 15.8 | |
| 1998 | 15.8 | |
| 1999 | 15.9 | |
| 2000 | 15.9 | |
| 2001 | 16 | |
| 2002 | 16.4 | |
| 2003 | 16.5 | |
| 2004 | 16.5 | |
| 2005 | 16.5 | |
| 2006 | 16.5 | |
| 2007 | 16.5 | |
| 2008 | 16.5 | |
| 2009 | 16.5 | |
| 2010 | 16.5 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 50021 | |
| 1991 | 50374 | |
| 1992 | 50770 | |
| 1993 | 52224 | |
| 1994 | 55330 | |
| 1995 | 56925 | |
| 1996 | 57295 | |
| 1997 | 59009 | |
| 1998 | 59242 | |
| 1999 | 59591 | |
| 2000 | 59591 | |
| 2001 | 59795 | |
| 2002 | 61346 | |
| 2003 | 61641 | |
| 2004 | 61641 | |
| 2005 | 61641 | |
| 2006 | 61641 | |
| 2007 | 61641 | |
| 2008 | 61641 | |
| 2009 | 61641 | |
| 2010 | 61641 | |
Source: United Nations Statistics Division