Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 3 |
0.5%
|
0 | No obstacle | 503 |
82.6%
|
1 | Minor obstacle | 69 |
11.3%
|
2 | Moderate obstacle | 22 |
3.6%
|
3 | Major obstacle | 7 |
1.1%
|
4 | Very severe obstacle | 4 |
0.7%
|