| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 1 |
0.3%
|
| -7 | does not apply | 0 |
0%
|
| 0 | no obstacle | 101 |
27.6%
|
| 1 | minor obstacle | 82 |
22.4%
|
| 2 | moderate obstacle | 106 |
29%
|
| 3 | major obstacle | 53 |
14.5%
|
| 4 | very severe obstacle | 23 |
6.3%
|
| Sysmiss | 1629 |