Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years marital status 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, Single,100,51,34,9,34,38,3,1,02, Married,100,8,82,19,26,66,91,5,01, Widows,100,15,98,58,23,20,35,5,44, Separated or divorced,100,6,75,47,04,45,32,0,89, Notas: Fuente: National Statistics Institute