Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.3%
|
-7 | Does not apply | 1 |
0.2%
|
0 | No obstacle | 312 |
51.9%
|
1 | Minor obstacle | 152 |
25.3%
|
2 | Moderate obstacle | 76 |
12.6%
|
3 | Major obstacle | 46 |
7.7%
|
4 | Very severe obstacle | 12 |
2%
|