| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very well | 5028 |
44.3%
|
| 2 | Well | 4481 |
39.5%
|
| 3 | Can compute but with difficulties | 1831 |
16.1%
|
| 9 | No answer | 0 |
0%
|
| Sysmiss | 4133 |