| Value | Category | Cases | |
|---|---|---|---|
| -9 | DON'T KNOW | 4 |
0.3%
|
| -7 | DOES NOT APPLY | 6 |
0.4%
|
| 0 | No obstacle | 709 |
50.2%
|
| 1 | Minor obstacle | 317 |
22.4%
|
| 2 | Moderate obstacle | 244 |
17.3%
|
| 3 | Major obstacle | 116 |
8.2%
|
| 4 | Very severe obstacle | 17 |
1.2%
|
| Sysmiss | 17244 |