| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 44 |
29.3%
|
| 2 | Some difficulty | 67 |
44.7%
|
| 3 | A lot of difficulty | 35 |
23.3%
|
| 4 | Unable | 4 |
2.7%
|
| Sysmiss | 1276 |