| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 9083 |
81.6%
|
| 2 | SOME DIFFICULTY | 594 |
5.3%
|
| 3 | A LOT OF DIFFICULTY | 107 |
1%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 5 |
0%
|
| 9 | NO RESPONSE | 5 |
0%
|
| Sysmiss | 1341 |