Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years knowledge of contraceptions level of studies. Unidades: 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 100 100 100 100 100 100 100 100 100 Does not know any method 0,83 20 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 98,76 99,01 99,41 99,26 100 99,12 100 Knows pill 99,05 72,35 94,72 98,54 99,79 99,72 100 100 99,88 Knows IUD 91,21 30,58 69,45 87,98 94,31 93,9 100 98,56 97,2 Knows diaphragm, cap, vaginal sponge 77,83 9,24 37,9 69,63 87,02 82,46 76,2 93,44 91,7 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 97,4 98,12 99,41 99,02 100 99,73 99,93 Knows cycle and basal body temperature 58,37 3,06 22,1 47,66 64,83 63,2 67,39 84,46 81,84 Knows withdrawal 82,45 52,74 68,4 76,05 86,38 86,57 85,12 93,86 95,5 Knows vaginal wash 59,1 9,56 26,89 50,31 63,36 64,93 47,25 80,39 78,8 Knows spermicides 63,69 9,25 22,89 51,7 74,41 71,91 62,74 84,75 83,52 Knows long breastfeeding 45,6 28,2 29,53 39,5 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 68,8 12,44 27,76 56,94 80,66 76,63 66,55 86,21 88,86 Knows sterilization 93,91 53,8 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 96,9 Knows other methods 7,98 2,3 3,03 5,97 7,9 9,32 3,99 14,06 13,3 Notas: Fuente: National Statistics Institute