| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 4688 |
94.1%
|
| 2 | SOME DIFFICULTY | 205 |
4.1%
|
| 3 | A LOT OF DIFFICULTY | 26 |
0.5%
|
| 4 | CANNOT WALK 100 M/Y AT ALL | 13 |
0.3%
|
| 9 | NO RESPONSE | 2 |
0%
|
| Sysmiss | 49 |
1%
|