Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
0.2%
|
-7 | Does not apply | 4 |
0.1%
|
0 | No obstacle | 1274 |
47.2%
|
1 | Minor obstacle | 585 |
21.7%
|
2 | Moderate obstacle | 503 |
18.7%
|
3 | Major obstacle | 226 |
8.4%
|
4 | Very severe obstacle | 100 |
3.7%
|