National tables. Lifestyles: number of nights spent away from home. Percentages Persons who have had sexual rel. with casual partners in the last year by sex, no. of nights spent away from home becuase of work/studies in the last 12 months and use of condom with casual partners Units: percentages ,Total,Always,Not always, Both sexes, Total,100.00,59.14,40.86, At least 1 a month,100.00,64.20,35.80, Less than 1 a month,100.00,57.31,42.69, Males, Total,100.00,59.96,40.04, At least 1 a month,100.00,63.97,36.03, Less than 1 a month,100.00,58.34,41.66, Females, Total,100.00,56.62,43.38, At least 1 a month,100.00,65.26,34.74, Less than 1 a month,100.00,54.51,45.49, 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