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

;Total;Old parents or relatives;Siblings or friends;Partner;Professionals;Various support;Nobody;No data recorded;
Both sexes;
    Total;20,759.6;2,543.3;7,957.8;4,019.4;2,108.7;2,485.6;1,404.2;240.5;
    Lower than secondary education;15,169.1;1,615.7;5,767.2;3,132.5;1,551.8;1,793.3;1,140.9;167.8;
    Secondary education;2,789.3;456.1;1,049.1;492.1;283.7;383.8;108.5;16.0;
    University;2,267.1;415.9;978.4;275.5;214.6;273.6;73.5;35.7;
    No data recorded;534.1;55.7;163.1;119.3;58.6;34.9;81.3;21.0;
Males;
    Total;10,532.1;1,095.9;4,559.1;1,555.1;1,028.0;1,380.7;761.5;151.8;
    Lower than secondary education;7,651.8;709.1;3,301.0;1,182.2;751.6;988.2;608.9;110.9;
    Secondary education;1,344.2;167.6;558.0;198.6;122.4;223.5;65.0;9.2;
    University;1,221.7;182.3;593.6;123.3;116.7;142.8;44.8;18.1;
    No data recorded;314.4;37.0;106.6;51.0;37.3;26.3;42.8;13.5;
Females;
    Total;10,227.5;1,447.4;3,398.7;2,464.3;1,080.7;1,104.9;642.8;88.7;
    Lower than secondary education;7,517.3;906.6;2,466.2;1,950.3;800.2;805.1;532.0;56.8;
    Secondary education;1,445.1;288.5;491.1;293.5;161.3;160.3;43.5;6.8;
    University;1,045.4;233.6;384.8;152.1;97.9;130.8;28.8;17.5;
    No data recorded;219.7;18.7;56.6;68.3;21.3;8.7;38.5;7.5;
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