Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.5%
|
-7 | Does not apply | 1 |
0.2%
|
0 | No obstacle | 158 |
36.8%
|
1 | Minor obstacle | 140 |
32.6%
|
2 | Moderate obstacle | 114 |
26.6%
|
3 | Major obstacle | 13 |
3%
|
4 | Very severe obstacle | 1 |
0.2%
|