Encuesta de Fecundidad Characteristics marriages / couples and exposure to pregnancy risk. Women 15-49 years Females between 15 and 49 years size of municipality of residence Cohabitation situation. Unidades: Absolute figures ,Total,With spouse,With stable partner in the household,With stable partner out of household,With occasional relations,Another situation, Total,10.165.237,5.247.338,386.866,1.617.623,419.345,2.494.064, Up to 10,000 inhabitants,2.202.703,1.255.741,80.496,281.035,86.258,499.173, From 10,001 to 50,000 inhabitants,2.437.518,1.399.709,119.634,372.993,52.962,492.220, From 50,001 to 500,000 inhabitants,3.765.059,1.824.192,122.834,649.351,173.112,995.570, More than 500,000 inhabitants,1.759.957,767.697,63.902,314.245,107.013,507.100, Notas: Fuente: National Statistics Institute