Encuesta de Fecundidad
Females, married sometime, not pregnant, not sterilised and who can have children
Fem.marri. somet., no pregn., no ster.,and who can have children level of studies   duration of last open interval between births.
Unidades: absolute figures

	Total	From 0 to 7 months	From 8 to 11 months	From 12 to 23 months	From 24 to 35 months	From 36 to 47 months	From 48 to 59 months	60 and over	Average	
Total	5.212.113	1.211.340	93.514	345.294	313.324	273.922	212.189	2.762.530	92,18	
Illiterate	13.498	1.819	538	1.069	588	151	..	9.334	117,34	
Without studies	150.991	34.466	745	3.279	1.260	3.807	2.422	105.012	129,94	
Primary education and second grade, GBE or first year of GCSE	2.951.686	706.048	33.590	154.682	148.549	144.085	73.797	1.690.935	100,36	
Secondary Education and Post-secondary non-higher	647.866	106.528	12.783	59.629	52.639	35.128	34.658	346.501	91,57	
1º, 2º and intermediate technical-professional studies	756.736	206.586	20.816	58.373	55.861	53.938	60.961	300.201	69,17	
Higher level technical-professional studies	9.577	1.339	..	2.204	..	3.611	..	2.423	49,16	
First year of tertiary education	310.949	74.860	8.680	20.989	25.493	10.923	14.423	155.581	80,92	
Tertiary education, university graduates and doctors	370.810	79.694	16.362	45.070	28.935	22.279	25.928	152.542	69,39	
Notas:
Fuente: National Statistics Institute