| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 563 |
19.7%
|
| 2 | Good | 1415 |
49.4%
|
| 3 | Basic | 371 |
13%
|
| 4 | None | 511 |
17.8%
|
| 9 | Missing value | 3 |
0.1%
|