National tables: studies, age and sex. Values
Persons 18 to 49 years by sex, parents' highest level of studies   and preferred source of sexual information.
Units: thousands of persons

;Total;Old parents or relatives;Siblings or friends;Partner;Professionals;Various support;No data recorded;
Both sexes;
    Total;20,759.6;10,771.8;2,568.9;1,033.9;5,225.5;703.6;456.0;
    Lower than secondary education;15,169.1;8,044.9;1,796.3;780.6;3,779.2;446.1;321.9;
    Secondary education;2,789.3;1,345.1;360.0;139.0;747.8;142.1;55.3;
    University;2,267.1;1,083.8;335.7;77.7;614.6;90.4;64.9;
    No data recorded;534.1;297.9;76.8;36.6;83.8;25.0;13.9;
Males;
    Total;10,532.1;4,854.9;1,656.9;580.2;2,769.8;376.4;293.9;
    Lower than secondary education;7,651.8;3,560.2;1,171.6;428.4;2,041.3;258.8;191.4;
    Secondary education;1,344.2;615.3;191.1;73.6;367.1;55.4;41.8;
    University;1,221.7;521.2;232.9;56.3;313.9;49.2;48.2;
    No data recorded;314.4;158.2;61.3;21.9;47.6;13.0;12.4;
Females;
    Total;10,227.5;5,916.9;911.9;453.7;2,455.7;327.2;162.0;
    Lower than secondary education;7,517.3;4,484.8;624.7;352.2;1,737.9;187.3;130.4;
    Secondary education;1,445.1;729.8;168.8;65.4;380.8;86.8;13.5;
    University;1,045.4;562.6;102.8;21.4;300.7;41.2;16.7;
    No data recorded;219.7;139.7;15.6;14.7;36.3;12.0;1.4;
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