| Value | Category | Cases | |
|---|---|---|---|
| 1 | Cannot read or write | 3734 |
40.6%
|
| 2 | Can sign only | 1807 |
19.6%
|
| 3 | Can read only | 210 |
2.3%
|
| 4 | Can read and write | 3454 |
37.5%
|