Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years, use or have used contraceptions size of municipality of residence medical advice for use of contraceptions. Unidades: relative figures ;Total;Does not visit a medical center;Visits a public center;Visits a private center; Total;100;48,63;33,74;17,63; Up to 10,000 inhabitants;100;51,86;33,9;14,24; From 10,001 to 50,000 inhabitants;100;43,02;38,08;18,9; From 50,001 to 500,000 inhabitants;100;48,91;33,87;17,21; More than 500,000 inhabitants;100;52,11;26,94;20,95; Notas: Fuente: National Statistics Institute