Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 14.5 | 1 |
| 1991 | 14.7 | 1 |
| 1992 | 16.2 | 1 |
| 1993 | 16.2 | 1 |
| 1994 | 16.3 | 1 |
| 1995 | 16.3 | 1 |
| 1996 | 20.7 | 1 |
| 1997 | 20.9 | 1 |
| 1998 | 22.2 | 1 |
| 1999 | 22.2 | 1 |
| 2000 | 22.2 | 1 |
| 2001 | 23.1 | 1 |
| 2002 | 23.1 | 1 |
| 2003 | 23.1 | 1 |
| 2004 | 24 | 1 |
| 2005 | 24 | 1 |
| 2006 | 24 | 1 |
| 2007 | 24.9 | 1 |
| 2008 | 24.9 | 1 |
| 2009 | 24.9 | 1 |
| 2010 | 24.9 | 1 |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 5977 | 1 |
| 1991 | 6075 | 1 |
| 1992 | 6682 | 1 |
| 1993 | 6683 | 1 |
| 1994 | 6724 | 1 |
| 1995 | 6731 | 1 |
| 1996 | 8563 | 1 |
| 1997 | 8626 | 1 |
| 1998 | 9169 | 1 |
| 1999 | 9169 | 1 |
| 2000 | 9170 | 1 |
| 2001 | 9535 | 1 |
| 2002 | 9535 | 1 |
| 2003 | 9565 | 1 |
| 2004 | 9917 | 1 |
| 2005 | 9917 | 1 |
| 2006 | 9917 | 1 |
| 2007 | 10277 | 1 |
| 2008 | 10277 | 1 |
| 2009 | 10277 | 1 |
| 2010 | 10277 | 1 |
Source: United Nations Statistics Division