text: Ahan tan dumu tan n tamattant (eha tabel n tamudre, dumu tan n Gompertz, Hazards modles, cox proportional Hazards, tabel tan ajjotnen n afanaz n tamudre, Brass relational logists), tanalmut (dumu wan Hernes, dumu tan win Coale-Trussel, parity progression ratios), adubin (awatay n awadim war n adoban, Page model), alɣib (tikarsay tan Sullivan, tabel tan n tamudre ), ikayadan n ichaɣib (dumu wan Lee-Carter, Leslie Matrix) d imitikwayan n ichaɣib)