| Value | Category |
|---|---|
| 1 | None |
| 2 | Primary School |
| 3 | Junior High/ Middle School |
| 4 | High School (Lycee) |
| 5 | Vocational School |
| 6 | Higher education of 2 years |
| 7 | University - Undergraduate degree |
| 8 | University -Masters degree or more |
| 98 | No opinion |
| 99 | Refused / No Answer |
| Sysmiss |