Yemmal-d assaɣ yellan seg uslig ɣer umatu, Lehman (A) d Martin Berthet (F) nnan-d: «Assaɣ n umettwawi d assaɣ n umyellel i d-yemmalen awal uslig, ɣer wawal yellan d amatu qqaren-as amaway»10  Deg wammud-nneɣ nufa-d18 n yismawen d imawayen, azal n 4, 27%.