Encuesta de Fecundidad Characteristics marriages / couples and exposure to pregnancy risk. Women 15-49 years Females between 15 and 49 years occupational history cohabitation situation. Unidades: Relative figures ,Total,With spouse,With stable partner in the household,With stable partner out of household,With occasional relations,Another situation, Total,100,51,62,3,81,15,91,4,13,24,54, Previously worked sometime,100,58,38,4,67,15,06,3,72,18,17, Have never worked,100,30,6,1,11,18,58,5,38,44,35, Notas: Fuente: National Statistics Institute