| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 3409 |
85%
|
| 2 | Good | 544 |
13.6%
|
| 3 | Basic | 42 |
1%
|
| 4 | None | 14 |
0.3%
|
| 9 | Missing value | 3 |
0.1%
|