Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 3.7 | |
| 1991 | 3.7 | |
| 1992 | 3.7 | |
| 1993 | 3.7 | |
| 1994 | 4 | |
| 1995 | 4.2 | |
| 1996 | 4.2 | |
| 1997 | 4.2 | |
| 1998 | 4.2 | |
| 1999 | 4.2 | |
| 2000 | 4.2 | |
| 2001 | 4.3 | |
| 2002 | 4.3 | |
| 2003 | 4.3 | |
| 2004 | 4.3 | |
| 2005 | 4.3 | |
| 2006 | 4.3 | |
| 2007 | 4.3 | |
| 2008 | 4.3 | |
| 2009 | 4.3 | |
| 2010 | 4.3 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 469 | |
| 1991 | 470 | |
| 1992 | 470 | |
| 1993 | 471 | |
| 1994 | 501 | |
| 1995 | 530 | |
| 1996 | 530 | |
| 1997 | 530 | |
| 1998 | 530 | |
| 1999 | 530 | |
| 2000 | 530 | |
| 2001 | 535 | |
| 2002 | 535 | |
| 2003 | 535 | |
| 2004 | 535 | |
| 2005 | 535 | |
| 2006 | 535 | |
| 2007 | 535 | |
| 2008 | 535 | |
| 2009 | 535 | |
| 2010 | 535 | |
Source: United Nations Statistics Division