Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years, non knowledge of contraceptions occupational history number of live births. Unidades: absolute figures ;Total;None;One;Two;Three;Four;Five and more;Average; Total;91.110;55.175;8.496;17.304;7.874;1.201;1.060;0,84; Previously worked sometime;56.218;30.977;5.197;14.320;4.664;..;1.060;0,95; Have never worked;34.892;24.198;3.299;2.984;3.210;1.201;..;0,68; Notas: Fuente: National Statistics Institute