| Value | Category | Cases | |
|---|---|---|---|
| 1 | Read only | 269 |
2.9%
|
| 2 | Write only | 160 |
1.7%
|
| 3 | Read and write | 3006 |
32.8%
|
| 4 | Illiterate | 5737 |
62.5%
|
| Sysmiss | 236 |