| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 1719 |
9.9%
|
| 2 | Good | 4851 |
28%
|
| 3 | Basic | 4246 |
24.5%
|
| 4 | None | 6524 |
37.6%
|
| 9 | Missing value | 5 |
0%
|