Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years, use contraceptions currently use of contraceptions level of studies. Units: relative figures ,Total,Illiterate,Without studies,Primary education and second grade, GBE or first year of GCSE,Secondary Education and Post-secondary non-higher,1º, 2º and intermediate technical-professional studies,Higher level technical-professional studies,First year of tertiary education,Tertiary education, university graduates and doctors, Total,100.00,0.25,1.95,46.72,17.69,16.99,0.46,6.32,9.61, Uses at least one inefficient method, but any efficient method,100.00,2.13,5.66,62.51,6.72,15.86,..,3.56,3.56, Uses at least one efficient method,100.00,0.14,1.74,45.80,18.33,17.06,0.49,6.48,9.96, Uses pill,100.00,0.03,0.74,39.36,22.25,18.94,0.65,6.89,11.13, Uses IUD,100.00,..,1.30,48.38,16.34,16.55,0.54,6.62,10.27, Uses diaphragm, cap, vaginal sponge,100.00,..,..,35.97,11.98,28.79,10.40,5.14,7.72, Uses abstinence,100.00,1.87,5.22,41.15,23.09,6.67,1.46,5.76,14.78, Uses condom,100.00,0.09,1.24,41.59,21.07,16.93,0.54,6.98,11.55, Uses cycle and basal body temperature,100.00,..,..,44.23,10.41,12.96,..,15.27,17.12, Uses withdrawal,100.00,1.59,5.05,60.47,10.19,14.16,..,5.29,3.26, Uses vaginal wash,100.00,..,..,20.56,11.90,67.54,..,..,.., Uses spermicides,100.00,..,..,18.72,19.99,33.09,0.54,..,27.66, Uses long breastfeeding,100.00,..,..,10.05,31.33,36.39,..,8.30,13.93, Uses injection,100.00,1.24,..,40.51,4.35,53.90,..,..,.., Uses the morning after pill,100.00,..,..,48.79,31.65,19.56,..,..,.., Uses sterilization,100.00,0.19,6.07,61.07,9.36,13.92,..,5.30,4.08, Uses vasectomy,100.00,..,1.19,63.94,7.88,17.67,0.13,4.98,4.21, Uses other methods,100.00,..,4.33,14.11,31.68,11.67,..,24.60,13.62, Notes: Source: National Statistics Institute