| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 2056 |
76.9%
|
| 2 | SOME DIFFICULTY | 171 |
6.4%
|
| 3 | A LOT OF DIFFICULTY | 14 |
0.5%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 1 |
0%
|
| 9 | NO RESPONSE | 1 |
0%
|
| Sysmiss | 430 |
16.1%
|