Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 2 |
0.2%
|
0 | No obstacle | 68 |
6.9%
|
1 | Minor obstacle | 63 |
6.4%
|
2 | Moderate obstacle | 181 |
18.3%
|
3 | Major obstacle | 340 |
34.4%
|
4 | Very severe obstacle | 332 |
33.6%
|