Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 1 | 1 |
| 1991 | 1 | 1 |
| 1992 | 1.2 | 1 |
| 1993 | 1.3 | 1 |
| 1994 | 1.3 | 1 |
| 1995 | 1.3 | 1 |
| 1996 | 1.4 | 1 |
| 1997 | 1.4 | 1 |
| 1998 | 1.4 | 1 |
| 1999 | 1.4 | 1 |
| 2000 | 1.4 | 1 |
| 2001 | 1.4 | 1 |
| 2002 | 1.4 | 1 |
| 2003 | 1.4 | 1 |
| 2004 | 1.4 | 1 |
| 2005 | 1.4 | 1 |
| 2006 | 1.4 | 1 |
| 2007 | 1.4 | 1 |
| 2008 | 1.4 | 1 |
| 2009 | 1.4 | 1 |
| 2010 | 1.4 | 1 |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 322 | 1 |
| 1991 | 338 | 1 |
| 1992 | 394 | 1 |
| 1993 | 436 | 1 |
| 1994 | 453 | 1 |
| 1995 | 454 | 1 |
| 1996 | 459 | 1 |
| 1997 | 459 | 1 |
| 1998 | 459 | 1 |
| 1999 | 459 | 1 |
| 2000 | 459 | 1 |
| 2001 | 459 | 1 |
| 2002 | 459 | 1 |
| 2003 | 459 | 1 |
| 2004 | 459 | 1 |
| 2005 | 467 | 1 |
| 2006 | 467 | 1 |
| 2007 | 467 | 1 |
| 2008 | 467 | 1 |
| 2009 | 467 | 1 |
| 2010 | 467 | 1 |
Source: United Nations Statistics Division
