| Value | Category | Cases | |
|---|---|---|---|
| 1 | No – no difficulty | 3316 |
96.1%
|
| 2 | Yes – some difficulty | 131 |
3.8%
|
| 3 | Yes – a lot of difficulty | 5 |
0.1%
|
| 4 | Cannot do at all | 0 |
0%
|