Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 6 |
0.5%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 204 |
18.6%
|
1 | Minor obstacle | 160 |
14.6%
|
2 | Moderate obstacle | 144 |
13.1%
|
3 | Major obstacle | 274 |
25%
|
4 | Very severe obstacle | 307 |
28%
|