| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 18116 |
97.6%
|
| 2 | Yes - Some difficulty | 308 |
1.7%
|
| 3 | Yes - A lot of difficulty | 122 |
0.7%
|
| 4 | Cannot perform activity at all | 24 |
0.1%
|
| Sysmiss | 294 |