Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 7 |
0.5%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 666 |
46.5%
|
1 | Minor obstacle | 382 |
26.7%
|
2 | Moderate obstacle | 258 |
18%
|
3 | Major obstacle | 101 |
7.1%
|
4 | Very severe obstacle | 17 |
1.2%
|