Encuesta de Fecundidad Charac. married couples or couples and expos. risk of preg. Fem.15-49 years Females between 15 and 49 years level of studies marital status. Units: Absolute figures ;Total;Single women;Married women;Widows women;Separated or divorced women; Total;10,165,237;4,454,390;5,247,338;89,042;374,467; Illiterate;29,627;11,476;14,358;200;3,592; Without studies;191,792;20,859;156,306;5,856;8,771; Primary education and second grade, GBE or first year of GCSE;4,774,814;1,566,152;2,964,194;60,014;184,455; Secondary Education and Post-secondary non-higher;1,957,740;1,256,592;628,741;4,058;68,349; 1º, 2º and intermediate technical-professional studies;1,615,916;796,423;753,194;10,699;55,601; Higher level technical-professional studies;38,349;28,475;9,875;..;..; First year of tertiary education;632,679;289,547;320,274;3,482;19,376; Tertiary education, university graduates and doctors;924,320;484,866;400,396;4,733;34,325; Notes: Source: National Statistics Institute