Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 1 |
0.2%
|
0 | No obstacle | 448 |
73.6%
|
1 | Minor obstacle | 59 |
9.7%
|
2 | Moderate obstacle | 52 |
8.5%
|
3 | Major obstacle | 38 |
6.2%
|
4 | Very severe obstacle | 10 |
1.6%
|