Encuesta de Fecundidad Characteristics marriages / couples and exposure to pregnancy risk. Women 15-49 years Females between 15 and 49 years occupational history marital status. Unidades: Relative figures ;Total;Single;Married;Widows;Separated or divorced; Total;100;43,82;51,62;0,88;3,68; Previously worked sometime;100;36,16;58,38;0,92;4,55; Have never worked;100;67,65;30,6;0,75;1; Notas: Fuente: National Statistics Institute