Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.3%
|
-7 | Does not apply | 5 |
0.5%
|
0 | No obstacle | 709 |
71.3%
|
1 | Minor obstacle | 177 |
17.8%
|
2 | Moderate obstacle | 71 |
7.1%
|
3 | Major obstacle | 22 |
2.2%
|
4 | Very severe obstacle | 8 |
0.8%
|