Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 31.9 | |
| 1991 | 32.2 | |
| 1992 | 32.5 | |
| 1993 | 32.9 | |
| 1994 | 33.5 | |
| 1995 | 33.9 | |
| 1996 | 34.7 | |
| 1997 | 35.8 | |
| 1998 | 37.4 | |
| 1999 | 38.1 | |
| 2000 | 38.7 | |
| 2001 | 40.1 | |
| 2002 | 40.2 | |
| 2003 | 41.1 | |
| 2004 | 41.3 | |
| 2005 | 42 | |
| 2006 | 42.2 | |
| 2007 | 42.4 | |
| 2008 | 42.4 | |
| 2009 | 42.4 | |
| 2010 | 42.4 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 114193 | |
| 1991 | 115103 | |
| 1992 | 116354 | |
| 1993 | 117709 | |
| 1994 | 119617 | |
| 1995 | 121047 | |
| 1996 | 123911 | |
| 1997 | 128059 | |
| 1998 | 133584 | |
| 1999 | 136076 | |
| 2000 | 138272 | |
| 2001 | 143309 | |
| 2002 | 143693 | |
| 2003 | 146997 | |
| 2004 | 147614 | |
| 2005 | 149989 | |
| 2006 | 150769 | |
| 2007 | 151573 | |
| 2008 | 151692 | |
| 2009 | 151692 | |
| 2010 | 151692 | |
Source: United Nations Statistics Division
