Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.3%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 193 |
21%
|
1 | Minor obstacle | 196 |
21.3%
|
2 | Moderate obstacle | 362 |
39.4%
|
3 | Major obstacle | 114 |
12.4%
|
4 | Very severe obstacle | 50 |
5.4%
|