National tables: age and sex. Percentages Persons 18 to 49 years who have had sexual relationships at some time in their life by sexual orientation and sex. Units: percentages ;Both sexes;Males;Females; Total;100.00;100.00;100.00; Exclusively heterosexual;96.70;96.12;97.30; Bisexual;2.64;2.78;2.50; Exclusively homosexual;0.66;1.10;0.20; Notes: 1) Includes females who have only had sexual practices with females 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