| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 215 |
96.8%
|
| 2 | Some difficulty | 7 |
3.2%
|
| 3 | A lot of difficulty | 0 |
0%
|
| 4 | Cannot learn things at all | 0 |
0%
|
| 9 | Missing | 0 |
0%
|
| Sysmiss | 157 |