Deg wammud yerzan asneɣmes drus, n wawalen (3,2%) ɛedlen gar umawal n l’IRCAM d umawal n M.M sɛan yiwen uẓar d yiwen uasalaɣ, awalen-agi i d-nufa deg umawal n usneɣmes IRCAM ttwaksen-d seg umawal n M. At Mɛammer.