National tables: age and sex. Values Persons 18 to 49 years who have had more than one sexual partner in the last year by age group and sex. Units: Thousands of persons ,Both sexes,Males,Females, Total,3,539.7,2,361.7,1,178.0, From 18 to 29 years of age,1,900.1,1,219.6,680.6, From 30 to 39 years of age,1,016.3,706.8,309.5, From 40 to 49 years of age,623.3,435.4,187.9, 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