Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
0.6%
|
-7 | Does not apply | 8 |
1%
|
0 | No obstacle | 479 |
62%
|
1 | Minor obstacle | 165 |
21.4%
|
2 | Moderate obstacle | 72 |
9.3%
|
3 | Major obstacle | 41 |
5.3%
|
4 | Very severe obstacle | 2 |
0.3%
|