Imi tutlayt d ayen yerzan imdanen, azal n 10.45% yettuɣal ɣer wayen yerzan ṭṭbiɛa, ṣṣifa, tiḥerci, tazmert n wemdan, ddegs n tenfaliyin diɣen i icudden ɣer umawal n twennadt, amawal n yiɣersiwen, amawal n ugama d waṭas n yisental nniḍen.