Encuesta de Fecundidad Preferences and motivations in terms of size of the family. Females, between 15-49 years. Fem. with risk of pregnancy or pregnant, with intention to have children level of studies No. of children that they wish to have. Unidades: relative figures Total One Two Three Four Five and more Total 100 23,52 52,15 19,17 4,02 1,14 Illiterate 100 72,38 2,42 25,2 .. .. Without studies 100 42,85 26,31 20,43 .. 10,41 Primary education and second grade, GBE or first year of GCSE 100 28,06 49,74 17 3,99 1,21 Secondary Education and Post-secondary non-higher 100 16,03 56,93 20,93 4,36 1,75 1º, 2º and intermediate technical-professional studies 100 24,78 53,09 19,06 2,73 0,34 Higher level technical-professional studies 100 23,97 53,33 18,8 3,9 .. First year of tertiary education 100 23,19 50,78 20,02 6 .. Tertiary education, university graduates and doctors 100 22,71 49,66 21,8 4,45 1,38 Notas: Fuente: National Statistics Institute