Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 17.1 | |
| 1991 | 17.2 | |
| 1992 | 17.7 | |
| 1993 | 18 | |
| 1994 | 18 | |
| 1995 | 18 | |
| 1996 | 18 | |
| 1997 | 18 | |
| 1998 | 18 | |
| 1999 | 18 | |
| 2000 | 18.1 | |
| 2001 | 18.1 | |
| 2002 | 18.1 | |
| 2003 | 18.1 | |
| 2004 | 18.1 | |
| 2005 | 18.1 | |
| 2006 | 18.1 | |
| 2007 | 18.1 | |
| 2008 | 18.1 | |
| 2009 | 18.1 | |
| 2010 | 18.1 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 56688 | |
| 1991 | 57070 | |
| 1992 | 58644 | |
| 1993 | 59623 | |
| 1994 | 59670 | |
| 1995 | 59670 | |
| 1996 | 59671 | |
| 1997 | 59671 | |
| 1998 | 59671 | |
| 1999 | 59703 | |
| 2000 | 59978 | |
| 2001 | 60045 | |
| 2002 | 60045 | |
| 2003 | 60045 | |
| 2004 | 60045 | |
| 2005 | 60045 | |
| 2006 | 60045 | |
| 2007 | 60045 | |
| 2008 | 60045 | |
| 2009 | 60045 | |
| 2010 | 60045 | |
Source: United Nations Statistics Division