Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years marital status contraceptive practices. Unidades: absolute figures ,Total,Never has used method,Has used before, but not currently,Currently use one efficient method,Currently use one inefficient method, Total,10.165.237,2.789.179,1.654.807,5.404.945,316.307, Single,4.454.390,2.286.730,416.238,1.705.941,45.481, Married,5.247.338,462.939,1.010.582,3.511.178,262.639, Widows,89.042,14.228,51.850,18.123,4.841, Separated or divorced,374.467,25.282,176.137,169.703,3.346, Notas: Fuente: National Statistics Institute