Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.4%
|
-7 | Does not apply | 2 |
0.8%
|
0 | No obstacle | 96 |
40%
|
1 | Minor obstacle | 48 |
20%
|
2 | Moderate obstacle | 36 |
15%
|
3 | Major obstacle | 35 |
14.6%
|
4 | Very severe obstacle | 22 |
9.2%
|