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

	Total	Always	Not always	
Both sexes	
    Total	100.00	59.03	40.97	
    Lower than secondary education	100.00	57.77	42.23	
    Secondary education	100.00	61.00	39.00	
    University	100.00	57.66	42.34	
Males	
    Total	100.00	59.85	40.15	
    Lower than secondary education	100.00	61.58	38.42	
    Secondary education	100.00	60.31	39.69	
    University	100.00	54.61	45.39	
Females	
    Total	100.00	56.48	43.52	
    Lower than secondary education	100.00	42.69	57.31	
    Secondary education	100.00	62.97	37.03	
    University	100.00	64.47	35.53	
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