| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 28 |
0.4%
|
| 2 | SOME DIFFICULTY | 2 |
0%
|
| 3 | A LOT OF DIFFICULTY | 3 |
0%
|
| 4 | CANNOT WALK AT ALL | 3 |
0%
|
| 9 | NO RESPONSE | 0 |
0%
|
| Sysmiss | 6292 |