Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years, use contraceptions currently use of contraceptions actual age (years). Units: 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 4.01 13.56 17.11 19.48 18.25 16.40 11.18 Uses at least one inefficient method, but any efficient method 100.00 1.73 7.66 11.25 15.81 18.72 19.68 25.16 Uses at least one efficient method 100.00 4.15 13.90 17.46 19.69 18.22 16.21 10.36 Uses pill 100.00 4.59 20.03 30.26 24.72 13.12 4.73 2.55 Uses IUD 100.00 .. 0.62 8.83 19.04 29.69 24.67 17.16 Uses diaphragm, cap, vaginal sponge 100.00 .. 4.00 10.40 46.27 19.40 19.93 .. Uses abstinence 100.00 13.61 15.25 17.66 16.49 7.23 13.63 16.12 Uses condom 100.00 5.93 19.58 19.16 19.44 15.46 13.01 7.42 Uses cycle and basal body temperature 100.00 .. 0.88 10.90 11.04 22.00 32.67 22.51 Uses withdrawal 100.00 3.02 11.14 12.90 15.86 20.27 17.24 19.57 Uses vaginal wash 100.00 4.46 64.16 1.94 7.35 7.14 6.39 8.57 Uses spermicides 100.00 6.58 9.94 8.14 28.98 20.41 9.23 16.73 Uses long breastfeeding 100.00 .. 14.51 8.42 26.89 50.19 .. .. Uses injection 100.00 .. 20.88 22.38 36.67 13.96 6.11 .. Uses the morning after pill 100.00 24.96 6.69 .. 48.79 19.56 .. .. Uses sterilization 100.00 .. 0.07 2.35 10.04 24.72 33.87 28.96 Uses vasectomy 100.00 0.08 0.22 2.35 20.96 31.51 30.22 14.67 Uses other methods 100.00 .. .. 11.86 7.41 21.90 21.16 37.67 Notes: Source: National Statistics Institute