| Value | Category | Cases | |
|---|---|---|---|
| 2 | SOME DIFFICULTY | 46 |
1.3%
|
| 3 | A LOT OF DIFFICULTY | 2 |
0.1%
|
| 4 | CANNOT WALK 100 YARDS AT ALL | 2 |
0.1%
|
| 9 | NO RESPONSE | 5 |
0.1%
|
| Sysmiss | 3368 |
98.4%
|