Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 11.2 | |
| 1991 | 11.3 | |
| 1992 | 11.3 | |
| 1993 | 11.3 | |
| 1994 | 11.4 | |
| 1995 | 11.5 | |
| 1996 | 11.7 | |
| 1997 | 11.7 | |
| 1998 | 11.7 | |
| 1999 | 11.8 | |
| 2000 | 11.8 | |
| 2001 | 11.8 | |
| 2002 | 12.1 | |
| 2003 | 12.2 | |
| 2004 | 12.2 | |
| 2005 | 12.2 | |
| 2006 | 12.2 | |
| 2007 | 12.3 | |
| 2008 | 12.4 | |
| 2009 | 12.4 | |
| 2010 | 12.4 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 3936 | |
| 1991 | 3959 | |
| 1992 | 3968 | |
| 1993 | 3984 | |
| 1994 | 4017 | |
| 1995 | 4057 | |
| 1996 | 4128 | |
| 1997 | 4129 | |
| 1998 | 4132 | |
| 1999 | 4137 | |
| 2000 | 4138 | |
| 2001 | 4147 | |
| 2002 | 4259 | |
| 2003 | 4295 | |
| 2004 | 4297 | |
| 2005 | 4297 | |
| 2006 | 4308 | |
| 2007 | 4330 | |
| 2008 | 4373 | |
| 2009 | 4373 | |
| 2010 | 4373 | |
Source: United Nations Statistics Division
