Literal question
Education and professional formation (for all persons born before January 1st, 1962)
[Applies to questions 8 - 11]
10. At what age did you stop attending school (including professional, technical, and university level schools)
_ _ years
Interviewer instructions
5.6.4 Question 10: Age at the end of studies
What we mean by "regularly attends a scholastic university establishment (including professional or technical)" is to take classes during the normal length of the school year.
Corresponding studies constitute then, for the person concerned, his only activity, or, at least, his/her main activity.