Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 6 |
0.3%
|
-7 | Does not apply | 68 |
3.1%
|
0 | No obstacle | 1874 |
85.6%
|
1 | Minor obstacle | 149 |
6.8%
|
2 | Moderate obstacle | 58 |
2.6%
|
3 | Major obstacle | 26 |
1.2%
|
4 | Very severe obstacle | 8 |
0.4%
|