Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 3 |
0.2%
|
-7 | Does not apply | 33 |
2.2%
|
0 | No obstacle | 997 |
65.7%
|
1 | Minor obstacle | 74 |
4.9%
|
2 | Moderate obstacle | 188 |
12.4%
|
3 | Major obstacle | 89 |
5.9%
|
4 | Very severe obstacle | 134 |
8.8%
|