Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.2%
|
-7 | Does not apply | 3 |
0.3%
|
0 | No obstacle | 574 |
57.7%
|
1 | Minor obstacle | 194 |
19.5%
|
2 | Moderate obstacle | 159 |
16%
|
3 | Major obstacle | 50 |
5%
|
4 | Very severe obstacle | 13 |
1.3%
|