Although this is equal to 51% of the actual available renewable water resources, annual abstraction from aquifers (57 BCM in 1993, 53 BCM in 2004) is already more than the estimated safe yield (46 BCM).
Selvom dette svarer til 51% af de faktisk genanvendelige vandressourcer, er forbruget fra grundvandsreservoir (57 MKM i 1993 og 53 MKM i 2004) allere højere end den estimerede sikkerhedsmargen (46 MKM).