| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 135 |
2.7%
|
| 2 | SOME DIFFICULTY | 14 |
0.3%
|
| 3 | A LOT OF DIFFICULTY | 5 |
0.1%
|
| 4 | CANNOT WALK 100 M/Y AT ALL | 4 |
0.1%
|
| Sysmiss | 4825 |
96.8%
|