| Value | Category | Cases | |
|---|---|---|---|
| 1 | No difficulty | 18411 |
99.2%
|
| 2 | Yes - Some difficulty | 111 |
0.6%
|
| 3 | Yes - A lot of difficulty | 28 |
0.2%
|
| 4 | Cannot perform activity at all | 15 |
0.1%
|
| Sysmiss | 299 |