Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 4.7 | |
| 1991 | 4.7 | |
| 1992 | 4.9 | |
| 1993 | 4.9 | |
| 1994 | 4.9 | |
| 1995 | 4.9 | |
| 1996 | 4.9 | |
| 1997 | 5 | |
| 1998 | 5 | |
| 1999 | 5 | |
| 2000 | 5 | |
| 2001 | 5 | |
| 2002 | 5 | |
| 2003 | 5 | |
| 2004 | 5 | |
| 2005 | 5 | |
| 2006 | 5 | |
| 2007 | 5 | |
| 2008 | 5 | |
| 2009 | 5 | |
| 2010 | 5 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 143405 | |
| 1991 | 144466 | |
| 1992 | 149454 | |
| 1993 | 149568 | |
| 1994 | 149594 | |
| 1995 | 150770 | |
| 1996 | 151247 | |
| 1997 | 152669 | |
| 1998 | 153251 | |
| 1999 | 153591 | |
| 2000 | 153787 | |
| 2001 | 153826 | |
| 2002 | 153826 | |
| 2003 | 153826 | |
| 2004 | 153826 | |
| 2005 | 153826 | |
| 2006 | 153826 | |
| 2007 | 153826 | |
| 2008 | 153826 | |
| 2009 | 153826 | |
| 2010 | 153826 | |
Source: United Nations Statistics Division