Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years actual age (years) contraceptive practices. Units: relative figures Total Never has used method Has used before, but not currently Currently use one efficient method Currently use one inefficient method Total 100.00 27.44 16.28 53.17 3.11 From 15 to 19 years old 100.00 79.76 2.89 16.93 0.41 From 20 to 24 years old 100.00 41.14 10.11 47.23 1.52 From 25 to 29 years old 100.00 21.43 17.86 58.51 2.21 From 30 to 34 years old 100.00 10.72 18.84 67.28 3.16 From 35 to 39 years old 100.00 11.76 18.38 65.90 3.96 From 40 to 44 years old 100.00 11.69 18.47 65.21 4.63 45 to 49 years 100.00 18.93 28.49 46.03 6.54 Notes: Source: National Statistics Institute