| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 532 |
75.9%
|
| 2 | SOME DIFFICULTY | 91 |
13%
|
| 3 | A LOT OF DIFFICULTY | 45 |
6.4%
|
| 4 | CANNOT WALK 100 M AT ALL | 26 |
3.7%
|
| 9 | NO RESPONSE | 7 |
1%
|
| Sysmiss | 16843 |