Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.2%
|
-7 | Does not apply | 3 |
0.2%
|
0 | No obstacle | 571 |
43.9%
|
1 | Minor obstacle | 348 |
26.8%
|
2 | Moderate obstacle | 273 |
21%
|
3 | Major obstacle | 65 |
5%
|
4 | Very severe obstacle | 38 |
2.9%
|