Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 7 |
0.5%
|
-7 | Does not apply | 6 |
0.5%
|
0 | No obstacle | 585 |
44.2%
|
1 | Minor obstacle | 376 |
28.4%
|
2 | Moderate obstacle | 280 |
21.2%
|
3 | Major obstacle | 59 |
4.5%
|
4 | Very severe obstacle | 10 |
0.8%
|