Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 19.3 | 1 |
| 1991 | 19.3 | 1 |
| 1992 | 19.3 | 1 |
| 1993 | 19.4 | 1 |
| 1994 | 19.4 | 1 |
| 1995 | 19.4 | 1 |
| 1996 | 19.4 | 1 |
| 1997 | 21 | 1 |
| 1998 | 21.1 | 1 |
| 1999 | 21.1 | 1 |
| 2000 | 21.1 | 1 |
| 2001 | 21.2 | 1 |
| 2002 | 23.2 | 1 |
| 2003 | 23.2 | 1 |
| 2004 | 23.2 | 1 |
| 2005 | 23.2 | 1 |
| 2006 | 23.2 | 1 |
| 2007 | 23.2 | 1 |
| 2008 | 23.2 | 1 |
| 2009 | 23.2 | 1 |
| 2010 | 23.2 | 1 |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 9432 | 1 |
| 1991 | 9440 | 1 |
| 1992 | 9460 | 1 |
| 1993 | 9486 | 1 |
| 1994 | 9487 | 1 |
| 1995 | 9489 | 1 |
| 1996 | 9493 | 1 |
| 1997 | 10273 | 1 |
| 1998 | 10345 | 1 |
| 1999 | 10347 | 1 |
| 2000 | 10349 | 1 |
| 2001 | 10352 | 1 |
| 2002 | 11345 | 1 |
| 2003 | 11346 | 1 |
| 2004 | 11346 | 1 |
| 2005 | 11347 | 1 |
| 2006 | 11347 | 1 |
| 2007 | 11347 | 1 |
| 2008 | 11347 | 1 |
| 2009 | 11347 | 1 |
| 2010 | 11347 | 1 |
Source: United Nations Statistics Division
