| Value | Category | Cases | |
|---|---|---|---|
| 2 | SOME DIFFICULTY | 52 |
1.5%
|
| 3 | A LOT OF DIFFICULTY | 2 |
0.1%
|
| 4 | CANNOT WALK AT ALL | 6 |
0.2%
|
| 9 | NO RESPONSE | 2 |
0.1%
|
| Sysmiss | 3412 |
98.2%
|