Encuesta de Fecundidad
Characteristics marriages / couples and exposure to pregnancy risk. Women  15-49 years
Females married sometime or with a partner, who 1st marriage or relation finished  level of studies  duration of 1st marriage  or 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	1.318.037	1.164.654	81.729	43.158	27.815	680	
Illiterate	4.852	3.792	1.060	..	..	..	
Without studies	18.455	11.933	..	2.742	3.780	..	
Primary education and second grade, GBE or first year of GCSE	525.828	436.479	44.172	28.481	16.016	680	
Secondary Education and Post-secondary non-higher	302.182	278.136	13.842	5.962	4.242	..	
1º, 2º and intermediate technical-professional studies	204.944	193.531	7.913	3.008	491	..	
Higher level technical-professional studies	520	357	163	..	..	..	
First year of tertiary education	96.074	88.715	3.422	2.368	1.569	..	
Tertiary education, university graduates and doctors	165.181	151.710	11.158	596	1.718	..	
Notas:
Fuente: National Statistics Institute