Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.2%
|
-7 | Does not apply | 10 |
1%
|
0 | No obstacle | 389 |
38%
|
1 | Minor obstacle | 170 |
16.6%
|
2 | Moderate obstacle | 168 |
16.4%
|
3 | Major obstacle | 224 |
21.9%
|
4 | Very severe obstacle | 62 |
6%
|