| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 312 |
10.9%
|
| 2 | Good | 461 |
16.1%
|
| 3 | Basic | 696 |
24.3%
|
| 4 | None | 1391 |
48.6%
|
| 9 | Missing value | 3 |
0.1%
|