Ma yella nerra tamuɣli-nneɣ ɣer tfelwit-agi, ad d-naf tuget n wid id aɣ-d-yerran ɣef yisteqsiyen-a d irgazen llan azal n 62.5%, ma d tilawin llant 37.5%, leɛmer-nsen yella gar 20 d 55 n yiseggasen, aḥric ameqqren deg-sen d wid yellan gar 30 d 40 n yiseggasen azal n 40%. Ineɣmasen-agi llan wid ixedmen deg uɣmis yettwarun njemɛ-d deg-s azal n 37.5%, deg rradyu azal n 37.5%, akk d tiliẓri anda id aɣ-d-rran azal n 25%.