National tables. Lifestyles: nights out. Values Persons 18 to 49 years by sex, number of nights out in the last 12 months and perception of risk of infection of HIV/AIDS by injectable drugs Units: thousands of persons ;Total;High risk;Intermediate risk;Low or no risk;Depends on whether they share syringes or not;No data recorded; Both sexes; Total;20,759.6;12,112.0;2,041.3;96.7;6,244.5;265.2; At least 1 a month;13,759.4;8,009.2;1,460.9;59.3;4,123.6;106.3; Less than 1 a month;6,929.1;4,073.7;569.7;37.4;2,099.5;148.9; No data recorded;71.1;29.1;10.7;0.0;21.3;9.9; Males; Total;10,532.1;6,158.8;1,216.2;70.6;2,939.4;147.1; At least 1 a month;7,566.4;4,406.0;929.1;45.3;2,117.7;68.2; Less than 1 a month;2,930.7;1,734.8;279.6;25.2;816.7;74.4; No data recorded;35.0;18.0;7.5;0.0;5.1;4.6; Females; Total;10,227.5;5,953.2;825.0;26.2;3,305.0;118.1; At least 1 a month;6,193.0;3,603.2;531.7;14.0;2,005.9;38.2; Less than 1 a month;3,998.4;2,338.8;290.0;12.2;1,282.8;74.5; No data recorded;36.1;11.2;3.2;0.0;16.3;5.4; Notes: Data corresponding to cells with less than 45,000 persons must be used with caution, because they may be affected by high sample errors. Source: National Statistics Institute