Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years, have not used or use contracep., absolute fig. level of studies number of live births. Unidades: absolute figures ,Total,None,One,Two,Three,Four,Five and more,Average, Total,2.789.179,2.349.707,127.298,210.917,74.671,13.615,12.971,0,32, Illiterate,8.526,4.236,..,..,869,783,2.638,2,4, Without studies,44.913,13.137,4.318,10.121,9.220,4.702,3.414,1,99, Primary education and second grade, GBE or first year of GCSE,1.316.306,1.020.032,86.640,150.247,50.302,6.767,2.319,0,44, Secondary Education and Post-secondary non-higher,692.578,655.287,14.103,17.204,4.252,995,736,0,1, 1º, 2º and intermediate technical-professional studies,372.085,336.690,12.366,13.327,8.144,368,1.190,0,19, Higher level technical-professional studies,10.049,9.751,298,..,..,..,..,0,03, First year of tertiary education,159.194,142.856,6.986,7.467,1.884,..,..,0,17, Tertiary education, university graduates and doctors,185.529,167.717,2.587,12.552,..,..,2.674,0,22, Notas: Fuente: National Statistics Institute