Proportion of land area covered by forest, percentage
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 18.7 | |
| 2000 | 22.2 | |
| 2005 | 24.6 | |
| 2010 | 26.1 |
Proportion of total water resources used, percentage
| Year | Value | Footnotes |
|---|---|---|
| 1995 | 13.7 | 1 |
| 2000 | 19.8 | 2 |
Footnotes:
- Year range 1993 - 1997
- Year range 1998 - 2002
