Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
0.5%
|
-7 | Does not apply | 9 |
0.9%
|
0 | No obstacle | 303 |
30.3%
|
1 | Minor obstacle | 312 |
31.2%
|
2 | Moderate obstacle | 210 |
21%
|
3 | Major obstacle | 135 |
13.5%
|
4 | Very severe obstacle | 27 |
2.7%
|