Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 4.2 | |
| 1991 | 4.2 | |
| 1992 | 4.2 | |
| 1993 | 4.3 | |
| 1994 | 4.3 | |
| 1995 | 4.3 | |
| 1996 | 4.4 | |
| 1997 | 4.4 | |
| 1998 | 4.4 | |
| 1999 | 4.4 | |
| 2000 | 4.5 | |
| 2001 | 4.5 | |
| 2002 | 4.6 | |
| 2003 | 4.6 | |
| 2004 | 4.6 | |
| 2005 | 4.6 | |
| 2006 | 4.7 | |
| 2007 | 4.9 | |
| 2008 | 4.9 | |
| 2009 | 4.9 | |
| 2010 | 4.9 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 1888 | |
| 1991 | 1903 | |
| 1992 | 1918 | |
| 1993 | 1925 | |
| 1994 | 1944 | |
| 1995 | 1957 | |
| 1996 | 1995 | |
| 1997 | 2000 | |
| 1998 | 2003 | |
| 1999 | 2005 | |
| 2000 | 2022 | |
| 2001 | 2039 | |
| 2002 | 2063 | |
| 2003 | 2078 | |
| 2004 | 2090 | |
| 2005 | 2102 | |
| 2006 | 2108 | |
| 2007 | 2202 | |
| 2008 | 2204 | |
| 2009 | 2204 | |
| 2010 | 2204 | |
Source: United Nations Statistics Division
