| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 9083 |
79.2%
|
| 2 | SOME DIFFICULTY | 594 |
5.2%
|
| 3 | A LOT OF DIFFICULTY | 107 |
0.9%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 5 |
0%
|
| 9 | NO RESPONSE | 5 |
0%
|
| Sysmiss | 1670 |
14.6%
|