| Value | Category |
|---|---|
| 1 | No formal education or less than completed Primary |
| 2 | Completed primary education (Grade 1-5) |
| 3 | Completed lower secondary (Grade 6-8) |
| 4 | Passed GCE/ O/L |
| 5 | Passed GCE A/L |
| 6 | Completed bachelor degree |
| 7 | Completed Masters |
| 8 | Completed PhD/ doctorate |
| 11 | Vocational training (certificate) |
| 12 | Technical education (diploma) |
| 13 | Professional qualification (diploma) |
| 14 | Vocational technology (degree, bachelor level) |
| 99 | Don't know |
| Sysmiss |