Size of municipality of residence	Duration of 1st relation (years)	Total
Total	Total	100
Total	Under 5 years old	96,56
Total	From 5 to 9 years old	1,56
Total	From 10 to 14 years old	0,54
Total	From 15 to 19 years old	1,33
Total	20 years old and over	..
Up to 10,000 inhabitants	Total	100
Up to 10,000 inhabitants	Under 5 years old	96,17
Up to 10,000 inhabitants	From 5 to 9 years old	3,83
Up to 10,000 inhabitants	From 10 to 14 years old	..
Up to 10,000 inhabitants	From 15 to 19 years old	..
Up to 10,000 inhabitants	20 years old and over	..
From 10,001 to 50,000 inhabitants	Total	100
From 10,001 to 50,000 inhabitants	Under 5 years old	98,7
From 10,001 to 50,000 inhabitants	From 5 to 9 years old	1,3
From 10,001 to 50,000 inhabitants	From 10 to 14 years old	..
From 10,001 to 50,000 inhabitants	From 15 to 19 years old	..
From 10,001 to 50,000 inhabitants	20 years old and over	..
From 50,001 to 500,000 inhabitants	Total	100
From 50,001 to 500,000 inhabitants	Under 5 years old	94,4
From 50,001 to 500,000 inhabitants	From 5 to 9 years old	1,48
From 50,001 to 500,000 inhabitants	From 10 to 14 years old	1,2
From 50,001 to 500,000 inhabitants	From 15 to 19 years old	2,92
From 50,001 to 500,000 inhabitants	20 years old and over	..
More than 500,000 inhabitants	Total	100
More than 500,000 inhabitants	Under 5 years old	99,35
More than 500,000 inhabitants	From 5 to 9 years old	0,65
More than 500,000 inhabitants	From 10 to 14 years old	..
More than 500,000 inhabitants	From 15 to 19 years old	..
More than 500,000 inhabitants	20 years old and over	..