| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 5308 |
75%
|
| 2 | SOME DIFFICULTY | 291 |
4.1%
|
| 3 | A LOT OF DIFFICULTY | 72 |
1%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 3 |
0%
|
| Sysmiss | 1404 |
19.8%
|