| Value | Category | Cases | |
|---|---|---|---|
| 1 | NO DIFFICULTY | 5944 |
58.5%
|
| 2 | SOME DIFFICULTY | 124 |
1.2%
|
| 3 | A LOT OF DIFFICULTY | 15 |
0.1%
|
| 4 | CANNOT WALK AT ALL | 8 |
0.1%
|
| 9 | NO RESPONSE | 10 |
0.1%
|
| Sysmiss | 4055 |
39.9%
|