Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years size of municipality of residence 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, Up to 10,000 inhabitants,2.202.703,620.676,341.496,1.128.926,111.605, From 10,001 to 50,000 inhabitants,2.437.518,605.379,389.542,1.362.788,79.809, From 50,001 to 500,000 inhabitants,3.765.059,1.065.336,623.275,1.988.717,87.731, More than 500,000 inhabitants,1.759.957,497.788,300.493,924.513,37.162, Notas: Fuente: National Statistics Institute