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