Encuesta de Fecundidad
Characteristics marriages / couples and exposure to pregnancy risk. Women  15-49 years
Females married sometime or with a partner by level ofstudies and actual age (years).
Unidades: Average duration (years)

;Total;From 15 to 19 years old;From 20 to 24 years old;From 25 to 29 years old;From 30 to 34 years old;From 35 to 39 years old;From 40 to 44 years old;From 45 to 49 years old;
Total;9,8;0,2;0,4;2,7;7,2;12,4;16,9;20,7;
Illiterate;14,5;..;4;7,7;16,9;8,2;13,9;18,1;
Without studies;19,8;3,8;..;9,1;12,5;14,5;21;24,1;
Primary education and second grade, GBE or first year of GCSE;12,5;0,2;1,1;4,1;8,6;13,9;17,6;21,5;
Secondary Education and Post-secondary non-higher;6,5;0;0,2;1,7;6;10,8;16,4;18,6;
1º, 2º and intermediate technical-professional studies;7,2;0,1;0,2;2,7;6,6;11,9;17,3;20,5;
Higher level technical-professional studies;2,8;0;0,2;1,9;4,9;8,7;12,9;20;
First year of tertiary education;8,1;0;0,2;1,5;5;11,2;14,4;19,1;
Tertiary education, university graduates and doctors;5,9;..;0;0,7;4,4;8,7;11,8;14,1;
Notas:
Fuente: National Statistics Institute