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