| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 1 |
0.4%
|
| -7 | does not apply | 1 |
0.4%
|
| 0 | no obstacle | 129 |
46.7%
|
| 1 | minor obstacle | 63 |
22.8%
|
| 2 | moderate obstacle | 52 |
18.8%
|
| 3 | major obstacle | 22 |
8%
|
| 4 | very severe obstacle | 8 |
2.9%
|
| Sysmiss | 679 |