| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 5816 |
79.5%
|
| 2 | Some difficulty | 1330 |
18.2%
|
| 3 | A lot of difficulty | 172 |
2.4%
|
| 4 | Cannot do at all | 1 |
0%
|
| 9 | Refused/No answer | 0 |
0%
|
| Sysmiss | 541 |