| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 14 |
3.9%
|
| -8 | Refused | 0 |
0%
|
| -7 | DOES NOT APPLY | 1 |
0.3%
|
| 0 | No obstacle | 55 |
15.3%
|
| 1 | Minor obstacle | 28 |
7.8%
|
| 2 | Moderate obstacle | 45 |
12.5%
|
| 3 | Major obstacle | 99 |
27.5%
|
| 4 | Very severe obstacle | 118 |
32.8%
|
| Sysmiss | 726 |