Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 4 |
0.4%
|
-7 | Does not apply | 2 |
0.2%
|
0 | No obstacle | 467 |
45.4%
|
1 | Minor obstacle | 173 |
16.8%
|
2 | Moderate obstacle | 110 |
10.7%
|
3 | Major obstacle | 208 |
20.2%
|
4 | Very severe obstacle | 64 |
6.2%
|