| Value | Category | Cases | |
|---|---|---|---|
| 1 | Proficient | 15669 |
90.3%
|
| 2 | Good | 1346 |
7.8%
|
| 3 | Basic | 203 |
1.2%
|
| 4 | None | 124 |
0.7%
|
| 9 | Missing value | 3 |
0%
|