| Value | Category | 
|---|---|
| 1 | No formal education | 
| 2 | Alphabetization | 
| 3 | Primary School | 
| 4 | Secondary School | 
| 5 | Secondary Level Technical/ Vocational School | 
| 6 | Tertiary/University | 
| 7 | Post-secondary Technical/ Vocational School | 
| 8 | Graduate School | 
| 9 | Other | 
| 10 | Don't know | 
| Sysmiss |