Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 2 |
0.2%
|
0 | No obstacle | 106 |
8%
|
1 | Minor obstacle | 187 |
14.1%
|
2 | Moderate obstacle | 749 |
56.7%
|
3 | Major obstacle | 247 |
18.7%
|
4 | Very severe obstacle | 30 |
2.3%
|