Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.3%
|
-7 | Does not apply | 3 |
0.8%
|
0 | No obstacle | 183 |
50.8%
|
1 | Minor obstacle | 69 |
19.2%
|
2 | Moderate obstacle | 63 |
17.5%
|
3 | Major obstacle | 21 |
5.8%
|
4 | Very severe obstacle | 20 |
5.6%
|