Encuesta de Fecundidad Preferences and motivations in terms of size of the family. Females, between 15-49 years. Females between 15 and 49 years actual age (years) treatment to obtain pregnancy. Unidades: absolute figures ,Total,Has not been treatment,Has been treatment. Total,Has been treatment and at last one live birth,Has been treatment and no live child, Total,10.165.237,9.925.810,239.427,117.577,121.851, From 15 to 29 years old,4.527.931,4.509.420,18.511,5.592,12.919, From 30 to 34 years old,1.582.180,1.528.293,53.887,27.936,25.951, From 35 to 39 years old,1.494.625,1.422.271,72.354,31.715,40.639, From 40 to 44 years old,1.343.937,1.292.564,51.373,30.663,20.710, From 45 to 49 years old,1.216.564,1.173.263,43.301,21.670,21.631, Notas: Fuente: National Statistics Institute