Reasons why they had more children	Actual age (years)	Total
Failure of contraception used	Total	174.190
Failure of contraception used	From 15 to 29 years old	8.661
Failure of contraception used	From 30 to 39 years old	54.526
Failure of contraception used	From 40 to 49 years old	111.003
Lack of knowledge of contraceptions	Total	56.406
Lack of knowledge of contraceptions	From 15 to 29 years old	697
Lack of knowledge of contraceptions	From 30 to 39 years old	3.021
Lack of knowledge of contraceptions	From 40 to 49 years old	52.687
Others	Total	67.690
Others	From 15 to 29 years old	6.591
Others	From 30 to 39 years old	20.701
Others	From 40 to 49 years old	40.398