| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 305 |
10.7%
|
| 2 | Good | 419 |
14.6%
|
| 3 | Basic | 591 |
20.6%
|
| 4 | None | 1545 |
54%
|
| 9 | Missing value | 3 |
0.1%
|