| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 4639 |
82.8%
|
| 2 | SOME DIFFICULTY | 182 |
3.2%
|
| 3 | A LOT OF DIFFICULTY | 30 |
0.5%
|
| 4 | CANNOT WALK/CLIMB STEPS AT ALL | 5 |
0.1%
|
| Sysmiss | 749 |
13.4%
|