Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 4 |
0.3%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 808 |
57.1%
|
1 | Minor obstacle | 249 |
17.6%
|
2 | Moderate obstacle | 151 |
10.7%
|
3 | Major obstacle | 128 |
9%
|
4 | Very severe obstacle | 75 |
5.3%
|