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: absolute 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,Average,
Total,3.774.637,41.253,50.154,740.800,684.422,673.798,547.829,1.036.380,47,38,
Negative,172.392,3.515,1.647,25.397,29.253,21.456,24.837,66.287,57,21,
From 0 to 7 months,640.410,2.348,11.428,171.044,105.890,73.173,81.801,194.726,48,51,
From 8 to 11 months,803.670,7.301,9.276,176.393,133.313,169.676,117.697,190.013,45,85,
From 12 to 23 months,1.137.434,7.573,18.866,211.172,207.039,221.910,168.948,301.926,46,16,
From 24 to 35 months,451.429,6.906,..,74.396,97.405,70.271,67.144,135.306,47,74,
From 36 to 47 months,263.478,1.164,1.420,32.415,48.708,69.557,43.674,66.541,48,58,
From 48 to 59 months,88.622,1.919,3.634,14.811,21.456,8.855,12.688,25.259,45,98,
60 and over,217.201,10.528,3.883,35.172,41.358,38.899,31.040,56.322,46,71,
Notas:
Fuente: National Statistics Institute