Proportion of land area covered by forest, percentage
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 10.5 | |
| 2000 | 11.5 | |
| 2005 | 12.6 | |
| 2010 | 12.8 |
Proportion of total water resources used, percentage
| Year | Value | Footnotes |
|---|---|---|
| 1990 | 19.3 | 1 |
| 2000 | 17.4 | 2 |
Footnotes:
- Year range 1988 - 1992
- Year range 1998 - 2002
