Ad nẓer amek i d-ttuɣalen yiferdisen n teznuḍrest deg wungalen, ma yella reṣṣan kra n yilugan, neɣ tuget kra n tmuɣli, neɣ n uxemmem deg usenked n yiferdisen n teznuḍrest ɣer yimengalen iqbayliyen. Iswi n undi-a, ad d-nessebgen amek tga tarrayt s ways i dttwasezregen wungalen, acku laɛmer yelli unadi ɣef temsalt-a. Deg unadi-agi-nteɣ, nefreq iseggasen n usezreg ɣef sin n yiseggasen, sin n yinadiyen i yellan, wagi-nteɣ, nga deg-s tasleḍt taznuḍrest i 23 n wungalen i d-yeffɣen seg useggas n 2000 almi 2010, ma yela d anadi nniḍen ad xeddment tasleḍt taznuḍrest i wungalen i d-yeffɣen seg useggas n 2011 almi d 2020.