National tables. Lifestyles: nights out. Percentages Males 18 to 49 who have used a prostitute at some time in their life by number of nights out in the last 12 months and use of condom in last relationship with a prostitute Units: percentages ,Total,Yes,No, Total,100.00,87.56,12.44, At least 1 a month,100.00,90.36,9.64, Less than 1 a month,100.00,79.48,20.52, 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