Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years economic activity contraceptive practices. Unidades: relative figures ;Total;Never has used method;Has used before, but not currently;Currently use one efficient method;Currently use one inefficient method; Total;100;27,44;16,28;53,17;3,11; Employed Total;100;21,23;18,79;56,81;3,18; Self-employed workers;100;15;21,53;59,28;4,19; Total employed/employees;100;22,25;18,1;56,65;3,01; Permanent employed/employee;100;16,8;20,26;59,68;3,25; Temporary employed/employee;100;30,53;14,81;52,03;2,63; Employed another situation;100;27,07;20,05;50,54;2,35; Unemployed in searching for a job.;100;26,2;16,2;55,12;2,48; Students;100;65,8;5,48;28,54;0,18; Housework;100;13,65;18,21;62,78;5,36; Retired persons, pensioners;100;33,33;37,64;27,4;1,62; Another situation;100;24,51;22,15;52,21;1,14; Notas: Fuente: National Statistics Institute