Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 17.7 | |
| 1991 | 17.8 | |
| 1992 | 18.1 | |
| 1993 | 18.1 | |
| 1994 | 18.4 | |
| 1995 | 18.5 | |
| 1996 | 18.7 | |
| 1997 | 18.8 | |
| 1998 | 19.2 | |
| 1999 | 19.2 | |
| 2000 | 19.3 | |
| 2001 | 19.5 | |
| 2002 | 19.7 | |
| 2003 | 19.7 | |
| 2004 | 19.7 | |
| 2005 | 19.9 | |
| 2006 | 19.9 | |
| 2007 | 20.1 | |
| 2008 | 20.4 | |
| 2009 | 20.4 | |
| 2010 | 20.4 | |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 8045 | |
| 1991 | 8070 | |
| 1992 | 8220 | |
| 1993 | 8222 | |
| 1994 | 8374 | |
| 1995 | 8392 | |
| 1996 | 8508 | |
| 1997 | 8543 | |
| 1998 | 8704 | |
| 1999 | 8725 | |
| 2000 | 8766 | |
| 2001 | 8845 | |
| 2002 | 8947 | |
| 2003 | 8948 | |
| 2004 | 8955 | |
| 2005 | 9041 | |
| 2006 | 9057 | |
| 2007 | 9110 | |
| 2008 | 9284 | |
| 2009 | 9284 | |
| 2010 | 9284 | |
Source: United Nations Statistics Division
