Level of studies	Duration of interval between 1st and 2nd birth (months)	Total
Total	Total	3.774.637
Total	From 0 to 7 months	41.253
Total	From 8 to 11 months	50.154
Total	From 12 to 23 months	740.800
Total	From 24 to 35 months	684.422
Total	From 36 to 47 months	673.798
Total	From 48 to 59 months	547.829
Total	60 and over	1.036.380
Total	Average	47,38
Illiterate	Total	17.438
Illiterate	From 0 to 7 months	..
Illiterate	From 8 to 11 months	1.073
Illiterate	From 12 to 23 months	4.928
Illiterate	From 24 to 35 months	4.967
Illiterate	From 36 to 47 months	3.944
Illiterate	From 48 to 59 months	1.990
Illiterate	60 and over	538
Illiterate	Average	32,74
Without studies	Total	153.458
Without studies	From 0 to 7 months	..
Without studies	From 8 to 11 months	3.479
Without studies	From 12 to 23 months	50.041
Without studies	From 24 to 35 months	34.677
Without studies	From 36 to 47 months	27.117
Without studies	From 48 to 59 months	20.916
Without studies	60 and over	17.228
Without studies	Average	36,34
Primary education and second grade, GBE or first year of GCSE	Total	2.317.355
Primary education and second grade, GBE or first year of GCSE	From 0 to 7 months	18.063
Primary education and second grade, GBE or first year of GCSE	From 8 to 11 months	33.584
Primary education and second grade, GBE or first year of GCSE	From 12 to 23 months	423.436
Primary education and second grade, GBE or first year of GCSE	From 24 to 35 months	389.447
Primary education and second grade, GBE or first year of GCSE	From 36 to 47 months	409.219
Primary education and second grade, GBE or first year of GCSE	From 48 to 59 months	353.452
Primary education and second grade, GBE or first year of GCSE	60 and over	690.154
Primary education and second grade, GBE or first year of GCSE	Average	48,98
Secondary Education and Post-secondary non-higher	Total	418.299
Secondary Education and Post-secondary non-higher	From 0 to 7 months	1.707
Secondary Education and Post-secondary non-higher	From 8 to 11 months	2.622
Secondary Education and Post-secondary non-higher	From 12 to 23 months	73.060
Secondary Education and Post-secondary non-higher	From 24 to 35 months	81.174
Secondary Education and Post-secondary non-higher	From 36 to 47 months	73.824
Secondary Education and Post-secondary non-higher	From 48 to 59 months	60.057
Secondary Education and Post-secondary non-higher	60 and over	125.855
Secondary Education and Post-secondary non-higher	Average	50,03
1º, 2º and intermediate technical-professional studies	Total	442.552
1º, 2º and intermediate technical-professional studies	From 0 to 7 months	12.238
1º, 2º and intermediate technical-professional studies	From 8 to 11 months	8.915
1º, 2º and intermediate technical-professional studies	From 12 to 23 months	78.684
1º, 2º and intermediate technical-professional studies	From 24 to 35 months	79.646
1º, 2º and intermediate technical-professional studies	From 36 to 47 months	83.671
1º, 2º and intermediate technical-professional studies	From 48 to 59 months	50.182
1º, 2º and intermediate technical-professional studies	60 and over	129.217
1º, 2º and intermediate technical-professional studies	Average	47,95
Higher level technical-professional studies	Total	2.872
Higher level technical-professional studies	From 0 to 7 months	..
Higher level technical-professional studies	From 8 to 11 months	..
Higher level technical-professional studies	From 12 to 23 months	573
Higher level technical-professional studies	From 24 to 35 months	..
Higher level technical-professional studies	From 36 to 47 months	2.299
Higher level technical-professional studies	From 48 to 59 months	..
Higher level technical-professional studies	60 and over	..
Higher level technical-professional studies	Average	31,85
First year of tertiary education	Total	199.460
First year of tertiary education	From 0 to 7 months	7.800
First year of tertiary education	From 8 to 11 months	..
First year of tertiary education	From 12 to 23 months	42.934
First year of tertiary education	From 24 to 35 months	46.164
First year of tertiary education	From 36 to 47 months	34.945
First year of tertiary education	From 48 to 59 months	32.327
First year of tertiary education	60 and over	35.292
First year of tertiary education	Average	41,11
Tertiary education, university graduates and doctors	Total	223.203
Tertiary education, university graduates and doctors	From 0 to 7 months	1.446
Tertiary education, university graduates and doctors	From 8 to 11 months	481
Tertiary education, university graduates and doctors	From 12 to 23 months	67.144
Tertiary education, university graduates and doctors	From 24 to 35 months	48.348
Tertiary education, university graduates and doctors	From 36 to 47 months	38.780
Tertiary education, university graduates and doctors	From 48 to 59 months	28.906
Tertiary education, university graduates and doctors	60 and over	38.097
Tertiary education, university graduates and doctors	Average	39,24