| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 982 |
67.6%
|
| 2 | SOME DIFFICULTY | 59 |
4.1%
|
| 3 | A LOT OF DIFFICULTY | 6 |
0.4%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 1 |
0.1%
|
| Sysmiss | 405 |
27.9%
|