Encuesta de Fecundidad
Knowledge and use of contraceptions. Fem. between 15-49
Females between 15 and 49 years,   non knowledge of contraceptions   occupational history  number of live births.
Units: relative figures

	Total	None	One	Two	Three	Four	Five and more	
Total	100.00	60.56	9.32	18.99	8.64	1.32	1.16	
Previously worked  sometime	100.00	55.10	9.24	25.47	8.30	..	1.89	
Have never worked	100.00	69.35	9.45	8.55	9.20	3.44	..	
Notes:
Source: National Statistics Institute