| Value | Category | Cases | |
|---|---|---|---|
| 1 | Unable to read and write | 4274 |
31.1%
|
| 2 | Able to read only | 331 |
2.4%
|
| 3 | Able to write only | 652 |
4.7%
|
| 4 | Able to read and write | 8506 |
61.8%
|
| Sysmiss | 9 |