Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 3 |
0.3%
|
0 | No obstacle | 70 |
7.6%
|
1 | Minor obstacle | 86 |
9.4%
|
2 | Moderate obstacle | 224 |
24.4%
|
3 | Major obstacle | 258 |
28.1%
|
4 | Very severe obstacle | 277 |
30.1%
|