Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 1 |
0.2%
|
0 | No obstacle | 16 |
2.7%
|
1 | Minor obstacle | 16 |
2.7%
|
2 | Moderate obstacle | 53 |
8.8%
|
3 | Major obstacle | 170 |
28.3%
|
4 | Very severe obstacle | 343 |
57.2%
|