| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 19564 |
97.1%
|
| 2 | Yes - Some difficulty | 446 |
2.2%
|
| 3 | Yes - A lot of difficulty | 125 |
0.6%
|
| 4 | Cannot perform activity at all | 23 |
0.1%
|
| Sysmiss | 3235 |