National tables: studies, age and sex. Values Males 18 to 49 years who have had sexual relationships at some time in their life in their life by age group, studies and use of a prostitute at some time in their life. Units: thousands of persons ;Total;Yes;No;No data recorded; Total; Total;9,967.8;2,687.8;7,175.2;104.8; Lower than secondary education;4,292.8;1,297.0;2,936.8;59.0; Secondary education;3,815.0;996.7;2,786.5;31.7; University;1,860.1;394.0;1,451.9;14.1; From 18 to 29 years of age; Total;3,516.4;798.2;2,694.0;24.3; Lower than secondary education;1,381.0;372.5;994.5;13.9; Secondary education;1,595.2;342.4;1,242.5;10.4; University;540.2;83.3;456.9;0.0; From 30 to 39 years of age; Total;3,493.0;941.8;2,513.9;37.3; Lower than secondary education;1,504.4;429.9;1,054.0;20.5; Secondary education;1,271.3;353.5;906.5;11.2; University;717.3;158.4;553.4;5.5; From 40 to 49 years of age; Total;2,958.3;947.8;1,967.3;43.2; Lower than secondary education;1,407.4;494.6;888.3;24.6; Secondary education;948.4;300.8;637.5;10.1; University;602.6;152.4;441.6;8.6; 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