Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 11 |
0.5%
|
-7 | Does not apply | 96 |
4.6%
|
0 | No obstacle | 764 |
36.9%
|
1 | Minor obstacle | 452 |
21.8%
|
2 | Moderate obstacle | 404 |
19.5%
|
3 | Major obstacle | 198 |
9.6%
|
4 | Very severe obstacle | 144 |
7%
|