| Value | Category | Cases | |
|---|---|---|---|
| -9 | do not know | 3 |
2%
|
| -7 | does not apply | 17 |
11.5%
|
| 0 | no obstacle | 106 |
71.6%
|
| 1 | minor obstacle | 9 |
6.1%
|
| 2 | moderate obstacle | 3 |
2%
|
| 3 | major obstacle | 2 |
1.4%
|
| 4 | very severe obstacle | 8 |
5.4%
|