Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0%
|
-7 | Does not apply | 15 |
0.6%
|
0 | No obstacle | 791 |
30%
|
1 | Minor obstacle | 582 |
22.1%
|
2 | Moderate obstacle | 722 |
27.4%
|
3 | Major obstacle | 359 |
13.6%
|
4 | Very severe obstacle | 165 |
6.3%
|