Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years cohabitation situation contraceptive practices. Unidades: relative figures ;Total;Never has used method;Has used before, but not currently;Currently use one efficient method;Currently use one inefficient method; Total;100;27,44;16,28;53,17;3,11; With spouse;100;8,82;19,26;66,91;5,01; With stable partner in the household;100;5,43;16,1;73,75;4,72; With stable partner out of household;100;25,23;4,14;69,4;1,22; With occasional relations;100;27,73;10,83;57,92;3,52; Another situation;100;71,4;18,83;9,74;0,04; Notas: Fuente: National Statistics Institute