| Value | Category |
|---|---|
| 0 | No schooling |
| 1 | Standard 1 |
| 2 | Standard 2 |
| 3 | Standard 3 |
| 4 | Standard 4 |
| 5 | Standard 5 |
| 6 | Standard 6 |
| 7 | Standard 7 |
| 8 | Form A |
| 9 | Form B |
| 10 | Form C |
| 11 | Form D |
| 12 | Form E |
| 13 | Diploma certificate |
| 14 | University undergraduate |
| 15 | University Post-graduate |
| 16 | No formal education |
| 55 | Pre-school |
| 99 | Don't Know |
| 999 | missing in survey |