Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 1 |
0.2%
|
-7 | Does not apply | 2 |
0.3%
|
0 | No obstacle | 380 |
62.4%
|
1 | Minor obstacle | 151 |
24.8%
|
2 | Moderate obstacle | 56 |
9.2%
|
3 | Major obstacle | 15 |
2.5%
|
4 | Very severe obstacle | 4 |
0.7%
|