| Value | Category | Cases | |
|---|---|---|---|
| -9 | don't know | 0 |
0%
|
| -7 | does not apply | 1 |
0.3%
|
| 0 | no obstacle | 153 |
41.8%
|
| 1 | minor obstacle | 70 |
19.1%
|
| 2 | moderate obstacle | 101 |
27.6%
|
| 3 | major obstacle | 32 |
8.7%
|
| 4 | very severe obstacle | 9 |
2.5%
|
| Sysmiss | 720 |