Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 6 |
1%
|
0 | No obstacle | 526 |
84.4%
|
1 | Minor obstacle | 76 |
12.2%
|
2 | Moderate obstacle | 9 |
1.4%
|
3 | Major obstacle | 3 |
0.5%
|
4 | Very severe obstacle | 2 |
0.3%
|