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