Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 5 | |
| 1991 | 5.2 | |
| 1992 | 5.4 | |
| 1993 | 6 | |
| 1994 | 6.6 | |
| 1995 | 7.8 | |
| 1996 | 8.6 | |
| 1997 | 8.8 | |
| 1998 | 8.9 | |
| 1999 | 9 | |
| 2000 | 9 | |
| 2001 | 9 | |
| 2002 | 9.1 | |
| 2003 | 9.1 | |
| 2004 | 9.1 | |
| 2005 | 9.1 | |
| 2006 | 9.1 | |
| 2007 | 9.1 | |
| 2008 | 9.1 | |
| 2009 | 9.1 | |
| 2010 | 9.1 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 841189 | |
| 1991 | 871883 | |
| 1992 | 902787 | |
| 1993 | 1011987 | |
| 1994 | 1110396 | |
| 1995 | 1314202 | |
| 1996 | 1459984 | |
| 1997 | 1480234 | |
| 1998 | 1506127 | |
| 1999 | 1511525 | |
| 2000 | 1512924 | |
| 2001 | 1517168 | |
| 2002 | 1531306 | |
| 2003 | 1531591 | |
| 2004 | 1531592 | |
| 2005 | 1531592 | |
| 2006 | 1531593 | |
| 2007 | 1531593 | |
| 2008 | 1531593 | |
| 2009 | 1531593 | |
| 2010 | 1531593 | |
Source: United Nations Statistics Division
