Encuesta de Fecundidad
Characteristics marriages / couples and exposure to pregnancy risk. Women  15-49 years
Females married sometime or with a partner  level of studies  age to 1st marriage or with a partner.  
Unidades: Absolute figures

	Total	Under 20 years old	From 20 to 24 years old	From 25 to 29 years old	From 30 to 34 years old	years old and over	
Total	7.960.860	3.333.427	2.906.577	1.382.044	253.228	85.583	
Illiterate	24.394	15.357	8.242	656	..	140	
Without studies	177.163	72.451	83.084	16.242	3.627	1.759	
Primary education and second grade, GBE or first year of GCSE	3.845.911	1.385.853	1.753.073	583.197	87.983	35.805	
Secondary Education and Post-secondary non-higher	1.351.105	734.785	367.361	194.224	40.352	14.384	
1º, 2º and intermediate technical-professional studies	1.300.596	608.417	417.366	236.675	33.848	4.290	
Higher level technical-professional studies	34.889	19.469	7.945	6.896	580	..	
First year of tertiary education	500.603	181.859	151.207	135.090	24.631	7.816	
Tertiary education, university graduates and doctors	726.200	315.238	118.300	209.064	62.208	21.390	
Notas:
Fuente: National Statistics Institute