| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1. not at all | 0 |
0%
|
| 2 | 2. basic communication | 110 |
3.1%
|
| 3 | 3. reasonably well | 1993 |
56%
|
| 4 | 4. excellent | 1454 |
40.9%
|
| Sysmiss | 981 |