Terrestrial areas protected to total surface area, percentage
| Year | Value | Footnotes |
|---|
| 1990 | 4.2 | 1 |
| 1991 | 4.4 | 1 |
| 1992 | 4.4 | 1 |
| 1993 | 4.4 | 1 |
| 1994 | 4.7 | 1 |
| 1995 | 4.7 | 1 |
| 1996 | 4.7 | 1 |
| 1997 | 4.8 | 1 |
| 1998 | 4.8 | 1 |
| 1999 | 4.8 | 1 |
| 2000 | 4.8 | 1 |
| 2001 | 4.8 | 1 |
| 2002 | 4.9 | 1 |
| 2003 | 4.9 | 1 |
| 2004 | 4.9 | 1 |
| 2005 | 4.9 | 1 |
| 2006 | 4.9 | 1 |
| 2007 | 4.9 | 1 |
| 2008 | 4.9 | 1 |
| 2009 | 4.9 | 1 |
| 2010 | 4.9 | 1 |
Terrestrial areas protected, sq. km.
| Year | Value | Footnotes |
|---|
| 1990 | 1076 | 1 |
| 1991 | 1130 | 1 |
| 1992 | 1130 | 1 |
| 1993 | 1130 | 1 |
| 1994 | 1184 | 1 |
| 1995 | 1184 | 1 |
| 1996 | 1198 | 1 |
| 1997 | 1219 | 1 |
| 1998 | 1219 | 1 |
| 1999 | 1227 | 1 |
| 2000 | 1227 | 1 |
| 2001 | 1232 | 1 |
| 2002 | 1235 | 1 |
| 2003 | 1235 | 1 |
| 2004 | 1235 | 1 |
| 2005 | 1235 | 1 |
| 2006 | 1235 | 1 |
| 2007 | 1238 | 1 |
| 2008 | 1240 | 1 |
| 2009 | 1240 | 1 |
| 2010 | 1240 | 1 |
Source: United Nations Statistics Division
