Proportion of land area covered by forest, percentage
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 21.5 | |
| 2000 | 22 | |
| 2005 | 22.8 | |
| 2010 | 23 |
Proportion of total water resources used, percentage
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 26.3 | 1 |
| 2000 | 32.1 | 2 |
| 2010 | 40.1 | 3 |
Footnotes:
- Year range 1988 - 1992
- Year range 1998 - 2002
- Year range 2008 - 2012
