| Value | Category | Cases | |
|---|---|---|---|
| -2 | Don't know | 1 |
0.1%
|
| -1 | Refused | 0 |
0%
|
| 1 | Vernacular language | 228 |
18.6%
|
| 2 | Swahili | 998 |
81.3%
|
| 3 | Foreign language | 1 |
0.1%
|
| Sysmiss | 1771 |