| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 15 |
4.2%
|
| -8 | Refused | 0 |
0%
|
| -7 | DOES NOT APPLY | 1 |
0.3%
|
| 0 | No obstacle | 58 |
16.1%
|
| 1 | Minor obstacle | 23 |
6.4%
|
| 2 | Moderate obstacle | 57 |
15.8%
|
| 3 | Major obstacle | 74 |
20.6%
|
| 4 | Very severe obstacle | 132 |
36.7%
|
| Sysmiss | 726 |