Encuesta de Fecundidad
Characteristics marriages / couples and exposure to pregnancy risk. Women  15-49 years
Single females who have had a partner, who 1st relation finished,   level of studies  duration of 1st relation (years). 
Unidades: Relative figures

;Total;Under 5 years old;From 5 to 9 years old;From 10 to 14 years old;From 15 to 19 years old;20 years old and over;
Total;100;96,56;1,56;0,54;1,33;..;
Illiterate;..;..;..;..;..;..;
Without studies;100;100;..;..;..;..;
Primary education and second grade, GBE or first year of GCSE;100;91,38;3,36;0,56;4,71;..;
Secondary Education and Post-secondary non-higher;100;98,88;0,73;0,39;..;..;
1º, 2º and intermediate technical-professional studies;100;100;..;..;..;..;
Higher level technical-professional studies;100;68,7;31,3;..;..;..;
First year of tertiary education;100;93,53;4,36;2,11;..;..;
Tertiary education, university graduates and doctors;100;99,45;..;0,55;..;..;
Notas:
Fuente: National Statistics Institute