| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
0.2%
|
| -8 | Refused | 0 |
0%
|
| -7 | DOES NOT APPLY | 1 |
0.2%
|
| 0 | No obstacle | 408 |
74.2%
|
| 1 | Minor obstacle | 52 |
9.5%
|
| 2 | Moderate obstacle | 57 |
10.4%
|
| 3 | Major obstacle | 23 |
4.2%
|
| 4 | Very severe obstacle | 8 |
1.5%
|
| Sysmiss | 1445 |