| Value | Category | Cases | |
|---|---|---|---|
| 1 | Cannot do at all | 3 |
0.3%
|
| 2 | No - no difficulty | 851 |
95.4%
|
| 3 | Yes – a lot of difficulty | 4 |
0.4%
|
| 4 | Yes – some difficulty | 34 |
3.8%
|