Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.5%
|
-7 | Does not apply | 9 |
2.1%
|
0 | No obstacle | 53 |
12.4%
|
1 | Minor obstacle | 113 |
26.3%
|
2 | Moderate obstacle | 180 |
42%
|
3 | Major obstacle | 57 |
13.3%
|
4 | Very severe obstacle | 15 |
3.5%
|