Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.3%
|
-7 | Does not apply | 0 |
0%
|
0 | No obstacle | 36 |
10%
|
1 | Minor obstacle | 73 |
20.3%
|
2 | Moderate obstacle | 151 |
41.9%
|
3 | Major obstacle | 81 |
22.5%
|
4 | Very severe obstacle | 18 |
5%
|