Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 43 |
3.3%
|
1 | Minor obstacle | 53 |
4%
|
2 | Moderate obstacle | 215 |
16.3%
|
3 | Major obstacle | 663 |
50.2%
|
4 | Very severe obstacle | 346 |
26.2%
|