Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 5 |
0.5%
|
-7 | Does not apply | 4 |
0.4%
|
0 | No obstacle | 439 |
40.4%
|
1 | Minor obstacle | 178 |
16.4%
|
2 | Moderate obstacle | 253 |
23.3%
|
3 | Major obstacle | 128 |
11.8%
|
4 | Very severe obstacle | 79 |
7.3%
|