Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 533 |
54.4%
|
1 | Minor obstacle | 256 |
26.1%
|
2 | Moderate obstacle | 132 |
13.5%
|
3 | Major obstacle | 54 |
5.5%
|
4 | Very severe obstacle | 2 |
0.2%
|