Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 5.3 | 1 |
| 1991 | 5.4 | 1 |
| 1992 | 5.4 | 1 |
| 1993 | 5.4 | 1 |
| 1994 | 5.4 | 1 |
| 1995 | 5.4 | 1 |
| 1996 | 5.4 | 1 |
| 1997 | 5.4 | 1 |
| 1998 | 5.4 | 1 |
| 1999 | 5.4 | 1 |
| 2000 | 5.5 | 1 |
| 2001 | 5.5 | 1 |
| 2002 | 5.5 | 1 |
| 2003 | 5.5 | 1 |
| 2004 | 5.5 | 1 |
| 2005 | 5.8 | 1 |
| 2006 | 6 | 1 |
| 2007 | 6 | 1 |
| 2008 | 6 | 1 |
| 2009 | 6 | 1 |
| 2010 | 6 | 1 |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 4702 | 1 |
| 1991 | 4741 | 1 |
| 1992 | 4741 | 1 |
| 1993 | 4741 | 1 |
| 1994 | 4741 | 1 |
| 1995 | 4749 | 1 |
| 1996 | 4749 | 1 |
| 1997 | 4769 | 1 |
| 1998 | 4769 | 1 |
| 1999 | 4773 | 1 |
| 2000 | 4881 | 1 |
| 2001 | 4890 | 1 |
| 2002 | 4890 | 1 |
| 2003 | 4890 | 1 |
| 2004 | 4890 | 1 |
| 2005 | 5147 | 1 |
| 2006 | 5274 | 1 |
| 2007 | 5281 | 1 |
| 2008 | 5281 | 1 |
| 2009 | 5281 | 1 |
| 2010 | 5281 | 1 |
Source: United Nations Statistics Division
