Encuesta de Fecundidad
Knowledge and use of contraceptions. Fem. between 15-49
Females between 15 and 49 years,   non knowledge of contraceptions  size of municipality of residence  number of live births. 
Unidades: absolute figures

;Total;None;One;Two;Three;Four;Five and more;Average;
Total;91.110;55.175;8.496;17.304;7.874;1.201;1.060;0,84;
Up to 10,000 inhabitants;29.275;18.421;1.639;4.121;5.094;..;..;0,86;
From 10,001 to 50,000 inhabitants;26.141;14.788;2.965;6.127;..;1.201;1.060;0,97;
From 50,001 to 500,000 inhabitants;19.990;10.082;3.891;3.236;2.780;..;..;0,94;
More than 500,000 inhabitants;15.704;11.884;..;3.819;..;..;..;0,49;
Notas:
Fuente: National Statistics Institute