National tables: age and sex. Values Persons who have had sexual relationships with new partners in the last year by sex, age group and use of condom in first sexual relationship with last new partner. Units: Thousands of persons ,Total,Yes,No,Don't remember, Both sexes, Total,2,656.4,1,899.9,734.8,21.7, From 18 to 29 years of age,1,578.7,1,199.8,366.5,12.4, From 30 to 39 years of age,770.7,499.5,267.0,4.2, From 40 to 49 years of age,307.0,200.6,101.3,5.1, Males, Total,1,807.9,1,295.4,493.9,18.6, From 18 to 29 years of age,1,041.1,778.2,253.6,9.3, From 30 to 39 years of age,522.9,351.3,167.5,4.2, From 40 to 49 years of age,243.9,166.0,72.8,5.1, Females, Total,848.4,604.5,240.9,3.1, From 18 to 29 years of age,537.6,421.6,112.9,3.1, From 30 to 39 years of age,247.8,148.3,99.5,0.0, From 40 to 49 years of age,63.0,34.6,28.4,0.0, 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