| Value | Category | Cases | |
|---|---|---|---|
| 2 | SOME DIFFICULTY | 3 |
0.2%
|
| 3 | A LOT OF DIFFICULTY | 1 |
0.1%
|
| 4 | CANNOT WALK 100 M AT ALL | 4 |
0.2%
|
| Sysmiss | 1816 |
99.6%
|