Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 14.7 | |
| 1991 | 15.7 | |
| 1992 | 15.9 | |
| 1993 | 15.9 | |
| 1994 | 16.5 | |
| 1995 | 16.9 | |
| 1996 | 17.3 | |
| 1997 | 17.5 | |
| 1998 | 18.1 | |
| 1999 | 19.2 | |
| 2000 | 19.9 | |
| 2001 | 20.1 | |
| 2002 | 20.1 | |
| 2003 | 20.1 | |
| 2004 | 20.1 | |
| 2005 | 20.1 | |
| 2006 | 20.1 | |
| 2007 | 20.1 | |
| 2008 | 20.1 | |
| 2009 | 20.1 | |
| 2010 | 20.1 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 76193 | |
| 1991 | 81188 | |
| 1992 | 82256 | |
| 1993 | 82484 | |
| 1994 | 85390 | |
| 1995 | 87370 | |
| 1996 | 89729 | |
| 1997 | 90761 | |
| 1998 | 93922 | |
| 1999 | 99298 | |
| 2000 | 103155 | |
| 2001 | 104007 | |
| 2002 | 104024 | |
| 2003 | 104024 | |
| 2004 | 104024 | |
| 2005 | 104024 | |
| 2006 | 104024 | |
| 2007 | 104024 | |
| 2008 | 104024 | |
| 2009 | 104024 | |
| 2010 | 104024 | |
Source: United Nations Statistics Division