Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.5%
|
-7 | Does not apply | 15 |
3.7%
|
0 | No obstacle | 259 |
63.3%
|
1 | Minor obstacle | 68 |
16.6%
|
2 | Moderate obstacle | 40 |
9.8%
|
3 | Major obstacle | 19 |
4.6%
|
4 | Very severe obstacle | 6 |
1.5%
|