Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.3%
|
-7 | Does not apply | 1 |
0.2%
|
0 | No obstacle | 385 |
65%
|
1 | Minor obstacle | 68 |
11.5%
|
2 | Moderate obstacle | 82 |
13.9%
|
3 | Major obstacle | 40 |
6.8%
|
4 | Very severe obstacle | 14 |
2.4%
|