National tables: studies, age and sex. Values
Persons who have had sexual rel. with casual partners in the   last year by sex, studies and use of condom with casual  partners.
Units: thousands of persons

;Total;Always;Not always;No data recorded;
Both sexes;
    Total;3,006.5;1,674.2;1,162.2;170.1;
    Lower than secondary education;1,232.8;672.7;491.7;68.4;
    Secondary education;1,193.5;684.1;437.4;72.0;
    University;580.3;317.5;233.1;29.7;
Males;
    Total;2,298.2;1,282.7;860.5;155.0;
    Lower than secondary education;991.3;572.6;357.3;61.5;
    Secondary education;900.2;502.6;330.7;66.8;
    University;406.7;207.5;172.5;26.7;
Females;
    Total;708.4;391.5;301.7;15.1;
    Lower than secondary education;241.5;100.1;134.4;7.0;
    Secondary education;293.3;181.4;106.7;5.2;
    University;173.6;110.0;60.6;3.0;
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