Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.5%
|
-7 | Does not apply | 2 |
0.5%
|
0 | No obstacle | 193 |
45%
|
1 | Minor obstacle | 117 |
27.3%
|
2 | Moderate obstacle | 105 |
24.5%
|
3 | Major obstacle | 9 |
2.1%
|
4 | Very severe obstacle | 1 |
0.2%
|