| Value | Category | 
|---|---|
| 1 | No formal education | 
| 2 | Primary school, not graduated | 
| 3 | Graduated from primary school | 
| 4 | Graduated from secondary school | 
| 5 | High school/college/university | 
| 6 | Arabic/Koranic | 
| 7 | Vocational/technical | 
| 8 | Non-conventional curriculum | 
| 77 | Don't Know | 
| 88 | Not Applicable | 
| 99 | No Response |