National tables: studies, age and sex. Percentages
Persons 18 to 49 years by sex, studies and preferred source of  sexual information.
Units: percentages

	Total	Old parents or relatives	Siblings or friends	Partner	Professionals	Various support	
Both sexes	
    Total	100.00	53.05	12.65	5.09	25.74	3.47	
    Lower than secondary education	100.00	56.56	12.91	6.86	20.28	3.38	
    Secondary education	100.00	51.51	12.92	4.35	28.16	3.06	
    University	100.00	48.99	11.66	2.98	32.03	4.35	
Males	
    Total	100.00	47.42	16.18	5.67	27.05	3.68	
    Lower than secondary education	100.00	49.85	17.31	7.03	21.53	4.27	
    Secondary education	100.00	46.19	15.86	5.32	29.93	2.71	
    University	100.00	44.36	14.24	3.23	33.84	4.34	
Females	
    Total	100.00	58.78	9.06	4.51	24.40	3.25	
    Lower than secondary education	100.00	63.99	8.05	6.68	18.89	2.40	
    Secondary education	100.00	57.22	9.77	3.31	26.26	3.45	
    University	100.00	52.62	9.64	2.78	30.61	4.36	
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