Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.7%
|
-7 | Does not apply | 4 |
0.9%
|
0 | No obstacle | 74 |
17.2%
|
1 | Minor obstacle | 65 |
15.1%
|
2 | Moderate obstacle | 69 |
16%
|
3 | Major obstacle | 146 |
34%
|
4 | Very severe obstacle | 69 |
16%
|