<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.mashariki ya kati na afrika ya kaskazini mena ni eneo la wingi la maji duniani, na nchi za 15 katika eneo hilo linakabiliwa na upungufu mkubwa wa maji chini ya 500 m3 mwaka ya maji yenyeji kwa kila mwaka.  <response>: the middle east and north africa mena region is the most water scarce region in the world, with 15 countries in the region suffering from extreme water scarcity less than 500 m3year of renewable water per capita per year. 