| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 1903 |
11%
|
| 2 | Good | 4755 |
27.4%
|
| 3 | Basic | 3864 |
22.3%
|
| 4 | None | 6820 |
39.3%
|
| 9 | Missing value | 3 |
0%
|