Encuesta de Fecundidad
Charac. married couples or couples and expos. risk of preg. Fem.15-49 years
Females married sometime or with a partner by   size of municipality of residence and actual age (years).
Units: Average duration (years)

;Total;From 15 to 19 years old;From 20 to 24 years old;From 25 to 29 years old;From 30 to 34 years old;From 35 to 39 years old;From 40 to 44 years old;From 45 to 49 years old;
Total;9.8;0.2;0.4;2.7;7.2;12.4;16.9;20.7;
Up to 10,000 inhabitants;10.3;0.2;0.6;3.2;7.9;13.1;16.3;21.3;
From 10,001 to 50,000 inhabitants;10.2;0.4;0.5;3.5;7.6;12.9;17.8;21.5;
From 50,001 to 500,000 inhabitants;9.6;0.1;0.4;2.0;6.5;11.9;17.3;20.4;
More than 500,000 inhabitants;9.1;0.0;0.1;2.1;6.4;11.9;15.5;19.7;
Notes:
Source: National Statistics Institute