Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years knowledge of contraceptions actual age (years). Units: vertical relative figures ;Total;From 15 to 19 years old;From 20 to 24 years old;From 25 to 29 years old;From 30 to 34 years old;From 35 to 39 years old;From 40 to 44 years old;45 to 49 years; Total;100.00;100.00;100.00;100.00;100.00;100.00;100.00;100.00; Does not know any method;0.83;0.79;0.73;0.78;0.21;0.88;0.98;1.57; Knows at least one inefficient method, but any efficient method;0.03;..;0.10;..;..;..;..;0.10; Knows at least one efficient method;99.15;99.21;99.16;99.22;99.79;99.12;99.02;98.33; Knows pill;99.05;98.56;99.82;99.01;99.50;99.55;99.08;97.38; Knows IUD;91.21;79.76;92.27;93.32;93.81;95.08;93.93;88.24; Knows diaphragm, cap, vaginal sponge;77.83;71.88;80.77;79.85;83.29;81.68;75.53;68.35; Knows abstinence;80.89;65.25;79.56;84.16;85.13;86.12;83.85;80.05; Knows condom;98.75;98.65;99.53;99.36;98.66;98.69;98.07;97.93; Knows cycle and basal body temperature;58.37;33.21;47.48;59.81;70.02;70.76;65.94;59.19; Knows withdrawal;82.45;61.94;79.54;86.49;88.44;89.88;87.62;80.50; Knows vaginal wash;59.10;48.14;55.38;55.37;64.07;68.29;63.20;58.49; Knows spermicides;63.69;58.75;68.33;66.51;69.42;68.02;59.78;50.65; Knows long breastfeeding;45.60;17.92;31.16;44.27;56.45;60.25;55.70;52.99; Knows injection;52.17;37.63;42.40;53.38;59.32;62.09;58.83;50.20; Knows the morning after pill;68.80;76.52;80.74;74.60;70.18;64.83;59.51;50.35; Knows sterilization;93.91;91.15;95.21;94.24;93.98;94.93;95.17;92.07; Knows vasectomy;92.77;87.16;94.70;93.93;94.15;94.29;94.20;89.54; Knows other methods;7.98;5.64;6.51;8.56;8.79;9.21;9.74;7.14; Notes: Source: National Statistics Institute