| Value | Category | 
|---|---|
| 0 | Nursari/kg/shishu | 
| 1 | Class 1 | 
| 2 | Class 2 | 
| 3 | Class 3 | 
| 4 | Class 4 | 
| 5 | Class 5 | 
| 6 | Class 6 | 
| 7 | Class 7 | 
| 8 | Class 8 | 
| 9 | Class 9 | 
| 10 | Class 10 | 
| 11 | Slc | 
| 12 | Class 12/intermediate level | 
| 13 | Bachelor level | 
| 14 | Master level | 
| 15 | Professional degree | 
| 16 | Literate (non-formal education) | 
| 17 | Illeterate | 
| 99 | Not stated | 
| Sysmiss |