Ma nekkes izri ibaway, azal n70% n yimyagen ur sɛin ara amgired gar sin n yisental-agi (PENCHOEN, 1966, yefka-d agmuḍ n 80% i Tcawit n Luras). Ad nger tamawt, dagi daɣen, belli tidrusi tamagdezt n usmegred tettwaɣrem s tesnagra-is deg yinawen: qrib akk imyagen i d ittyesɛan ttikkin ɣer tmawalt tagejdant (azal n 50+ % n yimliliyin n yimyagan deg wamud).