Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.5%
|
-7 | Does not apply | 19 |
3.1%
|
0 | No obstacle | 451 |
73.7%
|
1 | Minor obstacle | 49 |
8%
|
2 | Moderate obstacle | 49 |
8%
|
3 | Major obstacle | 29 |
4.7%
|
4 | Very severe obstacle | 12 |
2%
|