Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.6%
|
-7 | Does not apply | 8 |
2.2%
|
0 | No obstacle | 229 |
63.8%
|
1 | Minor obstacle | 60 |
16.7%
|
2 | Moderate obstacle | 37 |
10.3%
|
3 | Major obstacle | 12 |
3.3%
|
4 | Very severe obstacle | 11 |
3.1%
|