| Very Rich | More than 1000,000 m3/habitant/year |
| Rich | From 10,000 to 1000,000 m3/habitant/year |
| Sufficient | From 2000 to 10,000 m3/habitant/year |
| Regular | From 1000 to 2000 m3/habitant/year |
| Water deficit | Less than 1000 m3/habitant/year |