Encuesta de Fecundidad
Knowledge and use of contraceptions. Fem. between 15-49
Females between 15 and 49 years, married sometime level of studies  contraceptive practices. 
Unidades: relative figures

;Total;Never has used method;Has used before, but not currently;Currently use one efficient method;Currently use one  inefficient method;
Total;100;8,8;21,69;64,77;4,74;
Illiterate;100;25,24;29,77;12,79;32,21;
Without studies;100;18,85;19,79;53,1;8,26;
Primary education and second grade, GBE or first year of GCSE;100;10,44;20,85;62,73;5,98;
Secondary Education and Post-secondary non-higher;100;6,01;21,6;69,65;2,74;
1º, 2º and intermediate technical-professional studies;100;5,35;21,33;70,71;2,61;
Higher level technical-professional studies;100;3,01;18,74;78,25;..;
First year of tertiary education;100;5,24;24,99;67;2,77;
Tertiary education, university graduates and doctors;100;6,01;26,53;65,43;2,03;
Notas:
Fuente: National Statistics Institute