| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.2%
|
| -8 | Refused | 0 |
0%
|
| -7 | DOES NOT APPLY | 1 |
0.2%
|
| 0 | No obstacle | 355 |
70.7%
|
| 1 | Minor obstacle | 46 |
9.2%
|
| 2 | Moderate obstacle | 37 |
7.4%
|
| 3 | Major obstacle | 43 |
8.6%
|
| 4 | Very severe obstacle | 19 |
3.8%
|
| Sysmiss | 584 |