National tables. Lifestyles: nights out. Percentages Persons 18 to 49 years by sex, number of nights out in the last 12 months and preferred source of sexual information Units: percentages ,Total,Old parents or relatives,Siblings or friends,Partner,Professionals,Various support, Both sexes, Total,100.00,53.02,12.64,5.10,25.78,3.47, At least 1 a month,100.00,50.02,14.30,4.81,27.35,3.52, Less than 1 a month,100.00,59.02,9.32,5.67,22.63,3.35, Males, Total,100.00,47.34,16.18,5.66,27.13,3.69, At least 1 a month,100.00,45.62,17.17,5.48,28.06,3.67, Less than 1 a month,100.00,51.89,13.57,6.14,24.68,3.72, Females, Total,100.00,58.80,9.04,4.52,24.40,3.24, At least 1 a month,100.00,55.36,10.81,3.99,26.50,3.34, Less than 1 a month,100.00,64.11,6.29,5.34,21.17,3.09, 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