Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.6%
|
-7 | Does not apply | 3 |
0.8%
|
0 | No obstacle | 148 |
41%
|
1 | Minor obstacle | 135 |
37.4%
|
2 | Moderate obstacle | 49 |
13.6%
|
3 | Major obstacle | 19 |
5.3%
|
4 | Very severe obstacle | 5 |
1.4%
|