Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 12.1 | 1 |
| 1991 | 12.3 | 1 |
| 1992 | 12.3 | 1 |
| 1993 | 12.3 | 1 |
| 1994 | 12.7 | 1 |
| 1995 | 12.7 | 1 |
| 1996 | 12.7 | 1 |
| 1997 | 12.7 | 1 |
| 1998 | 12.7 | 1 |
| 1999 | 19.9 | 1 |
| 2000 | 19.9 | 1 |
| 2001 | 20 | 1 |
| 2002 | 20 | 1 |
| 2003 | 20 | 1 |
| 2004 | 20 | 1 |
| 2005 | 20.1 | 1 |
| 2006 | 20.1 | 1 |
| 2007 | 20.1 | 1 |
| 2008 | 20.1 | 1 |
| 2009 | 20.1 | 1 |
| 2010 | 20.1 | 1 |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 316 | 1 |
| 1991 | 319 | 1 |
| 1992 | 319 | 1 |
| 1993 | 320 | 1 |
| 1994 | 330 | 1 |
| 1995 | 330 | 1 |
| 1996 | 330 | 1 |
| 1997 | 330 | 1 |
| 1998 | 331 | 1 |
| 1999 | 517 | 1 |
| 2000 | 518 | 1 |
| 2001 | 521 | 1 |
| 2002 | 521 | 1 |
| 2003 | 521 | 1 |
| 2004 | 521 | 1 |
| 2005 | 522 | 1 |
| 2006 | 522 | 1 |
| 2007 | 522 | 1 |
| 2008 | 522 | 1 |
| 2009 | 522 | 1 |
| 2010 | 522 | 1 |
Source: United Nations Statistics Division
