Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 0 |
0%
|
0 | No obstacle | 252 |
42%
|
1 | Minor obstacle | 147 |
24.5%
|
2 | Moderate obstacle | 125 |
20.8%
|
3 | Major obstacle | 60 |
10%
|
4 | Very severe obstacle | 15 |
2.5%
|