Encuesta de Fecundidad Characteristics marriages / couples and exposure to pregnancy risk. Women 15-49 years Females married sometime or with a partner size of municipality of residence age to 1st marriage or with a partner. Unidades: Relative figures ;Total;Under 20 years old;From 20 to 24 years old;From 25 to 29 years old;From 30 to 34 years old;years old and over; Total;100;41,87;36,51;17,36;3,18;1,08; Up to 10,000 inhabitants;100;37,38;40,89;17,4;2,57;1,76; From 10,001 to 50,000 inhabitants;100;39,79;40,95;16,97;1,6;0,68; From 50,001 to 500,000 inhabitants;100;45,21;32,81;16,89;4,21;0,87; More than 500,000 inhabitants;100;43,66;31,95;18,98;4,17;1,24; Notas: Fuente: National Statistics Institute