Encuesta de Fecundidad
Knowledge and use of contraceptions. Fem. between 15-49
Females between 15 and 49 years,   non knowledge of contraceptions  age actual (years)  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	
From 15 to 19 years old	100	100	..	..	..	..	..	
From 20 to 24 years old	100	100	..	..	..	..	..	
From 25 to 29 years old	100	95,2	4,8	..	..	..	..	
From 30 to 34 years old	100	51,23	48,77	..	..	..	..	
From 35 to 39 years old	100	22,98	15,23	33,5	19,65	8,64	..	
From 40 to 44 years old	100	33,93	25,06	27,89	13,11	..	..	
45 to 49 years	100	19,98	4,4	50,4	18,95	..	6,26	
Notas:
Fuente: National Statistics Institute