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