| Value | Category |
|---|---|
| 1 | no school |
| 2 | primary (1- 4 classes) |
| 3 | secondary (5-8 classes) |
| 4 | vocational, apprentice or complementary |
| 5 | first level of high school (9-10 classes) |
| 6 | high school (9-12 classes) |
| 7 | post-secondary, technical school |
| 8 | college degree |
| 9 | university (including Master degree) |
| 10 | doctoral studies |