Internal Renewable Water Resources (IRWR): Long-term average annual flow of rivers and recharge of aquifers generated from endogenous precipitation. Double counting of surface water and groundwater resources is avoided by deducting the overlap from the sum of the surface water and groundwater resources
| Date | Value | Change, % |
|---|---|---|
| 2012 | 21 | 0.00% |
| 2007 | 21 | 0.00% |
| 2002 | 21 | 0.00% |
| 1997 | 21 | 0.00% |
| 1992 | 21 | 0.00% |
| 1987 | 21 | 0.00% |
| 1982 | 21 | 0.00% |
| 1977 | 21 | 0.00% |
| 1972 | 21 | 0.00% |
| 1967 | 21 | 0.00% |
| 1962 | 21 |
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