Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 7.6 | |
| 1991 | 7.6 | |
| 1992 | 8.2 | |
| 1993 | 8.4 | |
| 1994 | 8.4 | |
| 1995 | 8.5 | |
| 1996 | 8.6 | |
| 1997 | 8.6 | |
| 1998 | 8.9 | |
| 1999 | 9 | |
| 2000 | 9 | |
| 2001 | 9.1 | |
| 2002 | 10.2 | |
| 2003 | 12.4 | |
| 2004 | 12.4 | |
| 2005 | 12.4 | |
| 2006 | 12.4 | |
| 2007 | 12.5 | |
| 2008 | 13.2 | |
| 2009 | 13.2 | |
| 2010 | 13.2 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 1551 | |
| 1991 | 1551 | |
| 1992 | 1668 | |
| 1993 | 1713 | |
| 1994 | 1713 | |
| 1995 | 1718 | |
| 1996 | 1745 | |
| 1997 | 1745 | |
| 1998 | 1809 | |
| 1999 | 1826 | |
| 2000 | 1826 | |
| 2001 | 1842 | |
| 2002 | 2063 | |
| 2003 | 2521 | |
| 2004 | 2525 | |
| 2005 | 2525 | |
| 2006 | 2525 | |
| 2007 | 2540 | |
| 2008 | 2674 | |
| 2009 | 2674 | |
| 2010 | 2674 | |
Source: United Nations Statistics Division