Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 9 |
0.6%
|
-7 | Does not apply | 148 |
9.7%
|
0 | No obstacle | 927 |
61.1%
|
1 | Minor obstacle | 103 |
6.8%
|
2 | Moderate obstacle | 306 |
20.2%
|
3 | Major obstacle | 22 |
1.4%
|
4 | Very severe obstacle | 3 |
0.2%
|