| Value | Category | Cases | |
|---|---|---|---|
| -9 | DON'T KNOW | 6 |
0.6%
|
| -7 | DOES NOT APPLY | 2 |
0.2%
|
| 0 | No obstacle | 540 |
52.4%
|
| 1 | Minor obstacle | 222 |
21.6%
|
| 2 | Moderate obstacle | 136 |
13.2%
|
| 3 | Major obstacle | 104 |
10.1%
|
| 4 | Very severe obstacle | 20 |
1.9%
|
| Sysmiss | 2 |