| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 25 |
9.3%
|
| -8 | Refused | 2 |
0.7%
|
| -7 | DOES NOT APPLY | 7 |
2.6%
|
| 0 | No obstacle | 127 |
47%
|
| 1 | Minor obstacle | 39 |
14.4%
|
| 2 | Moderate obstacle | 36 |
13.3%
|
| 3 | Major obstacle | 20 |
7.4%
|
| 4 | Very severe obstacle | 14 |
5.2%
|
| Sysmiss | 685 |