Encuesta de Fecundidad
Knowledge and use of contraceptions. Fem. between 15-49
Females between 15 and 49 years,   non knowledge of contraceptions  level of studies  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;
Illiterate;4.069;3.008;..;..;..;..;1.060;1,3;
Without studies;2.504;..;..;1.303;..;1.201;..;2,96;
Primary education and second grade, GBE or first year of GCSE;61.124;36.996;7.066;11.918;5.144;..;..;0,76;
Secondary Education and Post-secondary non-higher;5.594;4.313;342;94;845;..;..;0,55;
1º, 2º and intermediate technical-professional studies;11.991;8.002;..;3.989;..;..;..;0,67;
Higher level technical-professional studies;..;..;..;..;..;..;..;..;
First year of tertiary education;5.828;2.856;1.088;..;1.884;..;..;1,16;
Tertiary education, university graduates and doctors;..;..;..;..;..;..;..;..;
Notas:
Fuente: National Statistics Institute