| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 2458 |
77%
|
| 2 | SOME DIFFICULTY | 182 |
5.7%
|
| 3 | A LOT OF DIFFICULTY | 26 |
0.8%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 2 |
0.1%
|
| Sysmiss | 524 |
16.4%
|