Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 712 |
71.6%
|
1 | Minor obstacle | 204 |
20.5%
|
2 | Moderate obstacle | 49 |
4.9%
|
3 | Major obstacle | 21 |
2.1%
|
4 | Very severe obstacle | 7 |
0.7%
|