Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 16 |
0.6%
|
-7 | Does not apply | 15 |
0.6%
|
0 | No obstacle | 2284 |
84.7%
|
1 | Minor obstacle | 279 |
10.3%
|
2 | Moderate obstacle | 74 |
2.7%
|
3 | Major obstacle | 20 |
0.7%
|
4 | Very severe obstacle | 9 |
0.3%
|