Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.6%
|
-7 | Does not apply | 1 |
0.3%
|
0 | No obstacle | 222 |
62%
|
1 | Minor obstacle | 38 |
10.6%
|
2 | Moderate obstacle | 52 |
14.5%
|
3 | Major obstacle | 35 |
9.8%
|
4 | Very severe obstacle | 8 |
2.2%
|