Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years, married sometime 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,100,8,8,21,69,64,77,4,74, With spouse,100,8,82,19,26,66,91,5,01, With stable partner in the household,100,3,68,21,34,67,75,7,22, With stable partner out of household,100,8,77,23,22,66,11,1,9, With occasional relations,100,..,14,23,85,77,.., Another situation,100,10,77,65,92,23,31,.., Notas: Fuente: National Statistics Institute