Living Conditions Survey (LCS) 
Income
Persons per income decile, by consumption unit and educational level attained (persons aged 16 years old and over).
Units: Horizontal percentages

,First decile,Second decile,Third decile,Fourth decile,Fifth decile,Sixth decile,Seventh decile,Eighth decile,Ninth decile,Tenth decile,
Total,9.4,9.9,10.0,10.1,9.9,10.1,10.2,10.1,10.1,10.1,
Primary education or lower,11.7,16.0,14.7,13.9,12.0,10.7,7.9,6.4,4.5,2.2,
First stage secondary education,12.0,10.9,11.4,11.6,11.1,11.5,11.3,9.0,6.9,4.2,
Second stage secondary education,8.4,8.0,8.4,8.9,9.0,10.8,12.3,12.8,11.8,9.8,
Higher education,5.2,3.2,4.4,5.4,6.9,7.4,9.9,13.6,18.2,25.7,
No data recorded,7.0,19.0,4.0,1.0,10.0,8.5,11.4,0.0,38.0,1.1,
Notes:
1) Primary education or lower: Includes illiterate persons
 First stage secondary education: Includes equivalent vocational training and insertion
 Second stage secondary education: Includes equivalent vocational training and insertion (including that requiring a second stage secondary education degree)
 Higher education: Includes equivalent vocational training and insertion

 The income per consumption unit is obtained, for each household, by dividing  the total household income by the number of consumption units. This uses the distribution of persons.
Source: National Statistics Institute