Survey on Adult Population Involvement in Learning Activities 
Formal and informal education. Percentage values
Use of the knowledge acquired in the informal education activity, by type of activity.
Units: percentages

	Total	Very frequently	Somewhat frequently	Very infrequently	Never	
Total	100.00	52.22	33.00	10.51	4.28	
Theoretical courses taught in the classroom	100.00	51.80	33.42	10.44	4.34	
Courses that combine theory and practice	100.00	51.34	32.51	11.72	4.44	
Courses taught through distance-education	100.00	45.40	36.53	13.38	4.70	
Private tuition	100.00	44.23	40.10	.	.	
Practical training activities at the workplace	100.00	58.70	30.75	6.78	3.77	
Notes:

.Data protected by statistical secrecy

Data referring to the 12 months prior to the date of the survey.

 The symbol '.' shall be deemed as data which cannot be provided since it may be affected by sampling errors.
Source: National Statistics Institute