Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 6 |
0.6%
|
-7 | Does not apply | 14 |
1.4%
|
0 | No obstacle | 743 |
74.4%
|
1 | Minor obstacle | 158 |
15.8%
|
2 | Moderate obstacle | 65 |
6.5%
|
3 | Major obstacle | 8 |
0.8%
|
4 | Very severe obstacle | 4 |
0.4%
|