Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.1%
|
-7 | Does not apply | 6 |
0.5%
|
0 | No obstacle | 490 |
37.7%
|
1 | Minor obstacle | 321 |
24.7%
|
2 | Moderate obstacle | 248 |
19.1%
|
3 | Major obstacle | 157 |
12.1%
|
4 | Very severe obstacle | 77 |
5.9%
|