Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.3%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 475 |
49.7%
|
1 | Minor obstacle | 180 |
18.8%
|
2 | Moderate obstacle | 156 |
16.3%
|
3 | Major obstacle | 108 |
11.3%
|
4 | Very severe obstacle | 32 |
3.4%
|