| Value | Category | Cases | |
|---|---|---|---|
| 2 | SOME DIFFICULTY | 20 |
0.4%
|
| 3 | A LOT OF DIFFICULTY | 8 |
0.1%
|
| 4 | CANNOT WALK 100 M/Y AT ALL | 6 |
0.1%
|
| 9 | NO RESPONSE | 3 |
0.1%
|
| Sysmiss | 5323 |