Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years knowledge of contraceptions level of studies. Units: vertical 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;100.00;100.00;100.00;100.00;100.00;100.00;100.00;100.00; Does not know any method;0.83;20.00;1.24;0.97;0.51;0.74;..;0.88;..; Knows at least one inefficient method, but any efficient method;0.03;..;..;0.03;0.07;..;..;..;..; Knows at least one efficient method;99.15;80.00;98.76;99.01;99.41;99.26;100.00;99.12;100.00; Knows pill;99.05;72.35;94.72;98.54;99.79;99.72;100.00;100.00;99.88; Knows IUD;91.21;30.58;69.45;87.98;94.31;93.90;100.00;98.56;97.20; Knows diaphragm, cap, vaginal sponge;77.83;9.24;37.90;69.63;87.02;82.46;76.20;93.44;91.70; Knows abstinence;80.89;52.38;60.86;73.18;88.47;83.53;81.57;93.44;96.04; Knows condom;98.75;87.26;97.40;98.12;99.41;99.02;100.00;99.73;99.93; Knows cycle and basal body temperature;58.37;3.06;22.10;47.66;64.83;63.20;67.39;84.46;81.84; Knows withdrawal;82.45;52.74;68.40;76.05;86.38;86.57;85.12;93.86;95.50; Knows vaginal wash;59.10;9.56;26.89;50.31;63.36;64.93;47.25;80.39;78.80; Knows spermicides;63.69;9.25;22.89;51.70;74.41;71.91;62.74;84.75;83.52; Knows long breastfeeding;45.60;28.20;29.53;39.50;44.44;50.65;48.72;64.19;61.45; Knows injection;52.17;14.09;35.99;49.17;49.93;55.38;53.85;67.98;60.19; Knows the morning after pill;68.80;12.44;27.76;56.94;80.66;76.63;66.55;86.21;88.86; Knows sterilization;93.91;53.80;79.72;92.18;95.25;95.86;92.91;98.15;97.75; Knows vasectomy;92.77;44.34;74.82;90.44;95.47;94.91;92.91;97.75;96.90; Knows other methods;7.98;2.30;3.03;5.97;7.90;9.32;3.99;14.06;13.30; Notes: Source: National Statistics Institute