Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years economic activity contraceptive practices. Units: absolute figures ;Total;Never has used method;Has used before, but not currently;Currently use one efficient method;Currently use one inefficient method; Total;10,165,237;2,789,179;1,654,807;5,404,945;316,307; Employed Total;4,473,426;949,510;840,362;2,541,307;142,246; Self-employed workers;772,762;115,919;166,371;458,071;32,401; Total employed/employees;3,487,143;775,799;631,184;1,975,325;104,835; Permanent employed/employee;2,104,705;353,691;426,445;1,256,083;68,486; Temporary employed/employee;1,382,438;422,107;204,739;719,243;36,350; Employed another situation;213,521;57,793;42,807;107,911;5,010; Unemployed in searching for a job.;1,124,141;294,488;182,118;619,629;27,905; Students;1,707,112;1,123,318;93,562;487,164;3,068; Housework;2,613,763;356,773;476,015;1,640,943;140,032; Retired persons, pensioners;52,175;17,392;19,641;14,296;846; Another situation;194,620;47,697;43,108;101,605;2,211; Notes: Source: National Statistics Institute