| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 4439 |
89.1%
|
| 2 | SOME DIFFICULTY | 289 |
5.8%
|
| 3 | A LOT OF DIFFICULTY | 28 |
0.6%
|
| 4 | CANNOT WALK 100 M/Y AT ALL | 8 |
0.2%
|
| 9 | NO RESPONSE | 12 |
0.2%
|
| Sysmiss | 207 |
4.2%
|