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.
Units: relative figures

;Total;None;One;Two;Three;Four;Five and more;
Total;100.00;60.56;9.32;18.99;8.64;1.32;1.16;
Up to 10,000 inhabitants;100.00;62.92;5.60;14.08;17.40;..;..;
From 10,001 to 50,000 inhabitants;100.00;56.57;11.34;23.44;..;4.59;4.06;
From 50,001 to 500,000 inhabitants;100.00;50.44;19.47;16.19;13.91;..;..;
More than 500,000 inhabitants;100.00;75.68;..;24.32;..;..;..;
Notes:
Source: National Statistics Institute