| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 3632 |
56.8%
|
| 2 | SOME DIFFICULTY | 58 |
0.9%
|
| 3 | A LOT OF DIFFICULTY | 10 |
0.2%
|
| 4 | CANNOT WALK AT ALL | 8 |
0.1%
|
| 9 | NO RESPONSE | 8 |
0.1%
|
| Sysmiss | 2678 |
41.9%
|