Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years use of contraceptions at any time of their life marital status. Units: relative figures Total Single Married Widows Separated or divorced Total 100.00 43.82 51.62 0.88 3.68 Has not used or uses any method 100.00 81.99 16.60 0.51 0.91 Has used or uses at least one inefficient method, but any efficient method 100.00 13.55 83.11 1.60 1.74 Has used or uses at least one efficient method 100.00 30.25 63.87 0.98 4.90 Has used or uses pill 100.00 22.48 69.97 1.22 6.32 Has used or uses IUD 100.00 6.40 83.10 1.64 8.86 Has used or uses diaphragm, cap, vaginal sponge 100.00 26.61 57.88 .. 15.51 Has used or uses abstinence 100.00 43.64 49.14 1.43 5.79 Has used or uses condom 100.00 34.55 60.94 0.56 3.95 Has used or uses cycle and basal body temperature 100.00 9.03 85.55 0.26 5.16 Has used or uses withdrawal 100.00 22.25 70.69 0.92 6.14 Has used or uses vaginal wash 100.00 26.74 68.18 .. 5.08 Has used or uses spermicides 100.00 22.97 62.91 .. 14.12 Has used or uses long breastfeeding 100.00 7.42 88.24 1.02 3.31 Has used or uses injection 100.00 14.79 63.91 3.67 17.63 Has used or uses the morning after pill 100.00 66.61 23.69 .. 9.70 Has used or uses sterilization 100.00 1.27 90.45 1.49 6.79 Has used or uses vasectomy 100.00 1.83 95.91 0.71 1.55 Has used or uses other methods 100.00 7.04 91.43 .. 1.53 Notes: Source: National Statistics Institute