Encuesta de Fecundidad Characteristics marriages / couples and exposure to pregnancy risk. Women 15-49 years Females between 15 and 49 years by level of studies and situation relativeto exposure to risk of pregnancy. Unidades: Absolute figures Total Currently pregnant Non pregnant, female sterilized Non pregnant, male sterilized Non pregnant, female sterile Non pregnant, female exposed to risk of pregnancy Total 10.165.237 220.165 498.125 498.853 316.923 8.631.172 Illiterate 29.627 .. 1.174 .. 4.652 23.801 Without studies 191.792 3.755 27.253 6.153 16.187 138.445 Primary education and second grade, GBE or first year of GCSE 4.774.814 92.259 302.799 319.098 178.771 3.881.885 Secondary Education and Post-secondary non-higher 1.957.740 24.831 43.385 36.943 33.261 1.819.319 1º, 2º and intermediate technical-professional studies 1.615.916 43.383 73.538 88.624 34.020 1.376.350 Higher level technical-professional studies 38.349 .. .. 681 298 37.371 First year of tertiary education 632.679 21.265 30.684 25.651 11.610 543.469 Tertiary education, university graduates and doctors 924.320 34.671 19.291 21.703 38.123 810.532 Notas: Fuente: National Statistics Institute