National tables: age and sex. Percentages Persons who have had casual partners in the last year by sex, age group and use of condom with casual partners. Units: percentages ;Total;Always;Not always; Both sexes; Total;100.00;59.03;40.97; From 18 to 29 years of age;100.00;62.68;37.32; From 30 to 39 years of age;100.00;55.67;44.33; From 40 to 49 years of age;100.00;54.06;45.94; Males; Total;100.00;59.85;40.15; From 18 to 29 years of age;100.00;62.97;37.03; From 30 to 39 years of age;100.00;56.78;43.22; From 40 to 49 years of age;100.00;56.63;43.37; Females; Total;100.00;56.48;43.52; From 18 to 29 years of age;100.00;61.90;38.10; From 30 to 39 years of age;100.00;51.31;48.69; From 40 to 49 years of age;100.00;45.62;54.38; 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