Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 46 |
0.5%
|
-7 | Does not apply | 82 |
0.9%
|
0 | No obstacle | 4048 |
43.2%
|
1 | Minor obstacle | 1875 |
20%
|
2 | Moderate obstacle | 1698 |
18.1%
|
3 | Major obstacle | 1114 |
11.9%
|
4 | Very severe obstacle | 513 |
5.5%
|