Tiɛcertin tineggura n lqern wis 20 (1980-2000), nwala-d abani n 10 n wungalen, taɛecret tamezwarut n lqern wis 21 banen-d 20 n wungalen i yemgaraden, ama si tama n usentel, ama si tama n ugbur, snat n teɛcertin i d-yernan nnig-s banen-d azal n 30 n wungalen nniḍen [...] 10.