Encuesta de Fecundidad Knowledge and use of contraceptions. Fem. between 15-49 Females between 15 and 49 years size of municipality of residence contraceptive practices. Units: absolute figures ,Total,Never has used method,Has used before, but not currently,Currently use one efficient method,Currently use one inefficient method, Total,10,165,237,2,789,179,1,654,807,5,404,945,316,307, Up to 10,000 inhabitants,2,202,703,620,676,341,496,1,128,926,111,605, From 10,001 to 50,000 inhabitants,2,437,518,605,379,389,542,1,362,788,79,809, From 50,001 to 500,000 inhabitants,3,765,059,1,065,336,623,275,1,988,717,87,731, More than 500,000 inhabitants,1,759,957,497,788,300,493,924,513,37,162, Notes: Source: National Statistics Institute