Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.2%
|
-7 | Does not apply | 259 |
17.1%
|
0 | No obstacle | 733 |
48.3%
|
1 | Minor obstacle | 161 |
10.6%
|
2 | Moderate obstacle | 305 |
20.1%
|
3 | Major obstacle | 50 |
3.3%
|
4 | Very severe obstacle | 7 |
0.5%
|