Encuesta de Fecundidad
Females who got married sometime, at least two children live birth.
Females married sometime, at least two children live birth.  duration of protogenesic interval   duration of interval between 1st and 2nd birth. 
Unidades: relative figures

	Total	From 0 to 7 months	From 8 to 11 months	From 12 to 23 months	From 24 to 35 months	From 36 to 47 months	From 48 to 59 months	60 and over	
Total	100	1,09	1,33	19,63	18,13	17,85	14,51	27,46	
Negative	100	2,04	0,96	14,73	16,97	12,45	14,41	38,45	
From 0 to 7 months	100	0,37	1,78	26,71	16,53	11,43	12,77	30,41	
From 8 to 11 months	100	0,91	1,15	21,95	16,59	21,11	14,64	23,64	
From 12 to 23 months	100	0,67	1,66	18,57	18,2	19,51	14,85	26,54	
From 24 to 35 months	100	1,53	..	16,48	21,58	15,57	14,87	29,97	
From 36 to 47 months	100	0,44	0,54	12,3	18,49	26,4	16,58	25,25	
From 48 to 59 months	100	2,16	4,1	16,71	24,21	9,99	14,32	28,5	
60 and over	100	4,85	1,79	16,19	19,04	17,91	14,29	25,93	
Notas:
Fuente: National Statistics Institute