| Value | Category |
|---|---|
| 0 | |
| 1 | not literate |
| 2 | literate through attending: NFEC/AEC |
| 3 | TLC |
| 4 | others |
| 5 | literate but below primary |
| 6 | primary |
| 7 | middle |
| 8 | secondary |
| 9 | higher secondary |
| 10 | graduate and above in : agriculture |
| 11 | engineering/technology |
| 12 | medicine |
| 13 | other subjects |
| Sysmiss |