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