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 rel. finished level of studies reason of the end of 1st marriage or with a partner. Unidades: Relative figures Total 1st marriage or with a partner finished by divorce or legal separation 1st marriage or with a partner finished by genuine separation by mutual agreement 1st marriage or with a partner finished by death 1st marriage or with a partner finished by other reasons Total 100 22,47 27,4 8,01 42,11 Illiterate 100 100 .. .. .. Without studies 100 43,74 5,38 31,36 19,52 Primary education and second grade, GBE or first year of GCSE 100 26,92 23,61 14,26 35,21 Secondary Education and Post-secondary non-higher 100 18,57 31,52 1,97 47,93 1º, 2º and intermediate technical-professional studies 100 20,22 29,75 5,22 44,8 Higher level technical-professional studies 100 .. .. .. 100 First year of tertiary education 100 19,3 29,68 3,74 47,28 Tertiary education, university graduates and doctors 100 15,5 31,03 2,78 50,69 Notas: Fuente: National Statistics Institute