| Value | Category |
|---|---|
| 1 | No formal education |
| 2 | Pre-primary education (e.g. nursery shool, early child development) |
| 3 | Incomplete primary education |
| 4 | Primary education |
| 5 | Lower secondary education |
| 6 | Upper secondary education |
| 7 | Vocational school |
| 8 | Univerity/ Bachelor's |
| 9 | Post-graduate (Masters or higher) |
| 10 | Other (specify) |
| 888 | respondent does not want to answer |
| 999 | respondent does not know |