Encuesta de Fecundidad
Knowledge and use of contraceptions. Fem. between 15-49
Females between 15 and 49 years,   non knowledge of contraceptions  size of municipality of residence  number of live births. 
Unidades: relative figures

,Total,None,One,Two,Three,Four,Five and more,
Total,100,60,56,9,32,18,99,8,64,1,32,1,16,
Up to 10,000 inhabitants,100,62,92,5,6,14,08,17,4,..,..,
From 10,001 to 50,000 inhabitants,100,56,57,11,34,23,44,..,4,59,4,06,
From 50,001 to 500,000 inhabitants,100,50,44,19,47,16,19,13,91,..,..,
More than 500,000 inhabitants,100,75,68,..,24,32,..,..,..,
Notas:
Fuente: National Statistics Institute