Interviewer instructions
Enter the respondent's highest education level defined in Question 111 in the first box (2004) of the Column 3 of the calendar. Begin at the year 2004 back to the year that the respondent was 15 years old, you ask about the respondent's education level changes. All education levels can be classified as "01-12" primary school, secondary school, high school, "13" junior college, "14" university or higher, "15" illiterate. If an education level lasts for an extensive period, enter the education level code in the first and the last year of an education level and connect them with a squiggly line.