Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years marital status contraceptive practices. Units: relative figures ;Total;Never has used method;Has used before, but not currently;Currently use one efficient method;Currently use one inefficient method; Total;100.00;27.44;16.28;53.17;3.11; Single;100.00;51.34;9.34;38.30;1.02; Married;100.00;8.82;19.26;66.91;5.01; Widows;100.00;15.98;58.23;20.35;5.44; Separated or divorced;100.00;6.75;47.04;45.32;0.89; Notes: Source: National Statistics Institute