Seg 10 n yiwenniten, imyigawanen deg tenfaliyin-nsen ssxedmen takriṭ, seg-s nufa-d 10 n teggiyin n waggaz. Imyigawanen ur ssxedmen ara tiggit n usezɣen, amuyed d tsedrest ihi afmiḍi-nsen 0%, azawar akked asqecmeɛ nufa-d yal yiwet tettusemres 03n tikkwal s ufmiḍi 30%, asezɣen n tigawt nufa-d 02 afmiḍi-is 20%, ma asezɣen n ubeddel n rray d ukellex ttusemrasent yiwet n tikkelt 01 s ufmiḍi 10%.