| Value | Category |
|---|---|
| 1 | Does not know how to read and write |
| 2 | Arabic only |
| 3 | Arabic and French |
| 4 | Arabic, French, and another |
| 5 | Arabic and another (not French) |
| 6 | Other cases |
| 8 | Unknown |
| 9 | NIU (not in universe) |
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