| Value | Category | Cases | |
|---|---|---|---|
| 1 | No – no difficulty | 3079 |
93.9%
|
| 2 | Yes – some difficulty | 139 |
4.2%
|
| 3 | Yes – a lot of difficulty | 40 |
1.2%
|
| 4 | Cannot do at all | 16 |
0.5%
|
| 8 | Do not know | 4 |
0.1%
|
| Sysmiss | 27 |