Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.3%
|
-7 | Does not apply | 2 |
0.2%
|
0 | No obstacle | 394 |
39.4%
|
1 | Minor obstacle | 346 |
34.6%
|
2 | Moderate obstacle | 183 |
18.3%
|
3 | Major obstacle | 66 |
6.6%
|
4 | Very severe obstacle | 7 |
0.7%
|