Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 9 |
0.9%
|
-7 | Does not apply | 17 |
1.8%
|
0 | No obstacle | 535 |
56%
|
1 | Minor obstacle | 166 |
17.4%
|
2 | Moderate obstacle | 110 |
11.5%
|
3 | Major obstacle | 80 |
8.4%
|
4 | Very severe obstacle | 38 |
4%
|