National tables: studies, age and sex. Percentages Males 18 to 49 who have used a prostitute at some time in their life by age group and studies. Units: percentages Total; Total;25.78; Lower than secondary education;29.01; Secondary education;24.75; University;20.43; From 18 to 29 years of age; Total;20.42; Lower than secondary education;24.60; Secondary education;19.13; University;13.78; From 30 to 39 years of age; Total;26.55; Lower than secondary education;27.91; Secondary education;27.64; University;21.76; From 40 to 49 years of age; Total;31.89; Lower than secondary education;34.92; Secondary education;31.40; University;25.51; Notes: 1) Percentage calculated with regards total of males 18 to 49 years old 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