| Value | Category | Cases | |
|---|---|---|---|
| 1 | no proficiency | 2 |
40%
|
| 2 | beginner’s level | 2 |
40%
|
| 3 | intermediate level | 1 |
20%
|
| 4 | Expert level | 0 |
0%
|
| Sysmiss | 6314 |