| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 2 |
0.5%
|
| -7 | does not apply | 3 |
0.8%
|
| 0 | no obstacle | 118 |
32.2%
|
| 1 | minor obstacle | 62 |
16.9%
|
| 2 | moderate obstacle | 117 |
32%
|
| 3 | major obstacle | 42 |
11.5%
|
| 4 | very severe obstacle | 22 |
6%
|
| Sysmiss | 1629 |