| Value | Category |
|---|---|
| Illiterate | |
| 1 | French |
| 2 | Arabic |
| 3 | Koran |
| 4 | One of the national languages (Bambara, Pularr, Songhai, Dongon, etc.) |
| 5 | One of the national languages plus French |
| 6 | French and another written language |
| 7 | Other languages |
| 8 | Unknown |
| 9 | NIU (not in universe) |