Encuesta de Fecundidad
Preferences and motivations in terms of size of the family. Females, between 15-49 years.
Females who have had more children than desired  reason why they had more  children  actual age (years).
Units: relative figures

	Total	From 15 to 29 years old	From 30 to 39 years old	From 40 to 49 years old	
Failure of contraception used	61.57	54.30	72.85	57.77	
Lack of knowledge of contraceptions	19.94	4.37	4.04	27.42	
Others	23.92	41.33	27.66	21.03	
Notes:
Source: National Statistics Institute