Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years knowledge of contraceptions level of studies. Units: absolute 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 10,165,237 29,627 191,792 4,774,814 1,957,740 1,615,916 38,349 632,679 924,320 Does not know any method 91,110 4,069 2,504 61,124 5,594 11,991 .. 5,828 .. Knows at least one inefficient method, but any efficient method 1,911 .. .. 638 1,273 .. .. .. .. Knows at least one efficient method 10,072,216 25,558 189,288 4,713,052 1,950,873 1,603,925 38,349 626,852 924,320 Knows pill 9,978,426 18,491 179,290 4,644,900 1,947,950 1,599,415 38,349 626,852 923,179 Knows IUD 9,188,162 7,817 131,453 4,147,036 1,841,141 1,506,072 38,349 617,816 898,478 Knows diaphragm, cap, vaginal sponge 7,840,353 2,360 71,743 3,282,285 1,698,815 1,322,530 29,221 585,756 847,643 Knows abstinence 8,149,443 13,386 115,196 3,449,395 1,726,989 1,339,717 31,283 585,754 887,723 Knows condom 9,947,746 22,301 184,364 4,625,062 1,940,661 1,588,191 38,349 625,141 923,677 Knows cycle and basal body temperature 5,880,425 783 41,825 2,246,743 1,265,609 1,013,728 25,844 529,442 756,452 Knows withdrawal 8,306,445 13,479 129,476 3,584,879 1,686,333 1,388,522 32,643 588,341 882,771 Knows vaginal wash 5,953,683 2,444 50,897 2,371,585 1,236,966 1,041,421 18,119 503,924 728,328 Knows spermicides 6,415,894 2,363 43,323 2,436,960 1,452,573 1,153,359 24,061 531,274 771,981 Knows long breastfeeding 4,593,910 7,208 55,901 1,861,796 867,530 812,361 18,684 402,391 568,039 Knows injection 5,255,716 3,602 68,125 2,317,795 974,731 888,320 20,651 426,115 556,377 Knows the morning after pill 6,930,940 3,178 52,553 2,684,120 1,574,694 1,229,074 25,523 540,432 821,366 Knows sterilization 9,461,088 13,751 150,901 4,345,105 1,859,479 1,537,487 35,632 615,255 903,478 Knows vasectomy 9,345,892 11,332 141,617 4,262,927 1,863,672 1,522,278 35,632 612,772 895,662 Knows other methods 803,867 588 5,729 281,325 154,173 149,478 1,529 88,118 122,927 Notes: Source: National Statistics Institute