| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 6185 |
99.6%
|
| 2 | Yes - some difficulty | 17 |
0.3%
|
| 3 | Yes - a lot of difficulty | 3 |
0%
|
| 4 | Cannot perform activity at all | 3 |
0%
|
| Sysmiss | 1474 |