| Value | Category | Cases | |
|---|---|---|---|
| 1 | No – no difficulty | 3082 |
89.3%
|
| 2 | Yes – some difficulty | 339 |
9.8%
|
| 3 | Yes – a lot of difficulty | 31 |
0.9%
|
| 4 | Cannot do at all | 0 |
0%
|