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: Absolute 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	663.335	640.548	10.372	3.608	8.806	..	
Illiterate	..	..	..	..	..	..	
Without studies	1.226	1.226	..	..	..	..	
Primary education and second grade, GBE or first year of GCSE	187.074	170.946	6.278	1.044	8.806	..	
Secondary Education and Post-secondary non-higher	195.196	193.014	1.426	755	..	..	
1º, 2º and intermediate technical-professional studies	112.714	112.714	..	..	..	..	
Higher level technical-professional studies	520	357	163	..	..	..	
First year of tertiary education	57.475	53.757	2.505	1.213	..	..	
Tertiary education, university graduates and doctors	109.130	108.534	..	596	..	..	
Notas:
Fuente: National Statistics Institute