“…Their reproductive life took place between 1930 and 1980, i.e., when traditional societies of local Berber peasantry were fully functional (the first campaign for family planning in the area started in the early 1980s). The data were collected in 1984, and have been described elsewhere (Crognier, 1996(Crognier, , 1997(Crognier, , 1998a(Crognier, , 1998bCrognier et al, 1992Crognier et al, , 1993Varea et al, 1996).…”