| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 2299 |
57.3%
|
| 2 | Good | 931 |
23.2%
|
| 3 | Basic | 478 |
11.9%
|
| 4 | None | 301 |
7.5%
|
| 9 | Missing value | 3 |
0.1%
|