Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.3%
|
-7 | Does not apply | 4 |
0.4%
|
0 | No obstacle | 391 |
40.9%
|
1 | Minor obstacle | 197 |
20.6%
|
2 | Moderate obstacle | 222 |
23.2%
|
3 | Major obstacle | 101 |
10.6%
|
4 | Very severe obstacle | 37 |
3.9%
|