| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 106 |
2.6%
|
| 2 | Good | 362 |
9%
|
| 3 | Basic | 759 |
18.9%
|
| 4 | None | 2782 |
69.3%
|
| 9 | Missing value | 3 |
0.1%
|