Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 5 |
0.4%
|
0 | No obstacle | 307 |
25.2%
|
1 | Minor obstacle | 172 |
14.1%
|
2 | Moderate obstacle | 408 |
33.6%
|
3 | Major obstacle | 241 |
19.8%
|
4 | Very severe obstacle | 82 |
6.7%
|