| Value | Category | Cases | |
|---|---|---|---|
| 2 | SOME DIFFICULTY | 774 |
82.3%
|
| 3 | A LOT OF DIFFICULTY | 148 |
15.7%
|
| 4 | CANNOT WALK AT ALL | 15 |
1.6%
|
| 9 | NO RESPONSE | 4 |
0.4%
|
| Sysmiss | 24697 |