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 cohabitation situation. Units: Relative figures Total With spouse With stable partner in the household With stable partner out of household With occasional relations Another situation Total 100.00 51.62 3.81 15.91 4.13 24.54 Illiterate 100.00 48.46 21.07 .. 5.02 25.44 Without studies 100.00 81.50 6.23 0.54 2.97 8.76 Primary education and second grade, GBE or first year of GCSE 100.00 62.08 4.05 8.71 2.52 22.64 Secondary Education and Post-secondary non-higher 100.00 32.12 3.22 24.92 6.08 33.66 1º, 2º and intermediate technical-professional studies 100.00 46.61 3.42 23.38 4.86 21.73 Higher level technical-professional studies 100.00 25.75 14.89 49.41 .. 9.95 First year of tertiary education 100.00 50.62 3.50 17.40 4.43 24.05 Tertiary education, university graduates and doctors 100.00 43.32 3.13 22.28 7.20 24.07 Notes: Source: National Statistics Institute