| Value | Category |
|---|---|
| 00 | NIU (not in universe) |
| 01 | Kinyarwanda |
| 02 | French |
| 03 | Swahili |
| 04 | English |
| 05 | Other language |
| 06 | French and Swahili |
| 07 | French and English |
| 08 | French and other |
| 09 | Swahili and English |
| 10 | Swahili and other |
| 11 | English and other |
| 12 | French, Swahilli and English |
| 13 | French, Swahili and other |
| 14 | French, English and other |
| 16 | Swahili, English and other |
| 17 | French, Swahili, English and other language |
| 99 | Unknown |