Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.3%
|
-7 | Does not apply | 5 |
0.8%
|
0 | No obstacle | 452 |
72.6%
|
1 | Minor obstacle | 92 |
14.8%
|
2 | Moderate obstacle | 52 |
8.3%
|
3 | Major obstacle | 10 |
1.6%
|
4 | Very severe obstacle | 10 |
1.6%
|