Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 2.9 | 1 |
| 1991 | 3.1 | 1 |
| 1992 | 3.7 | 1 |
| 1993 | 3.8 | 1 |
| 1994 | 3.8 | 1 |
| 1995 | 3.8 | 1 |
| 1996 | 3.8 | 1 |
| 1997 | 4 | 1 |
| 1998 | 4.4 | 1 |
| 1999 | 4.4 | 1 |
| 2000 | 4.4 | 1 |
| 2001 | 4.5 | 1 |
| 2002 | 4.5 | 1 |
| 2003 | 5.4 | 1 |
| 2004 | 5.4 | 1 |
| 2005 | 5.4 | 1 |
| 2006 | 5.4 | 1 |
| 2007 | 5.4 | 1 |
| 2008 | 5.4 | 1 |
| 2009 | 5.4 | 1 |
| 2010 | 5.4 | 1 |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 11683 | 1 |
| 1991 | 12458 | 1 |
| 1992 | 14743 | 1 |
| 1993 | 15085 | 1 |
| 1994 | 15085 | 1 |
| 1995 | 15106 | 1 |
| 1996 | 15153 | 1 |
| 1997 | 15858 | 1 |
| 1998 | 17533 | 1 |
| 1999 | 17533 | 1 |
| 2000 | 17537 | 1 |
| 2001 | 17872 | 1 |
| 2002 | 17872 | 1 |
| 2003 | 21843 | 1 |
| 2004 | 21861 | 1 |
| 2005 | 21861 | 1 |
| 2006 | 21861 | 1 |
| 2007 | 21861 | 1 |
| 2008 | 21861 | 1 |
| 2009 | 21861 | 1 |
| 2010 | 21861 | 1 |
Source: United Nations Statistics Division
