| Value | Category | Cases | |
|---|---|---|---|
| 1 | Cannot read or write | 3460 |
36.6%
|
| 2 | Can sign only | 1992 |
21%
|
| 3 | Can read only | 207 |
2.2%
|
| 4 | Can read and write | 3805 |
40.2%
|
| Sysmiss | 15 |