Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 12 |
0.1%
|
-7 | Does not apply | 109 |
0.6%
|
0 | No obstacle | 7838 |
42%
|
1 | Minor obstacle | 5273 |
28.3%
|
2 | Moderate obstacle | 3397 |
18.2%
|
3 | Major obstacle | 1494 |
8%
|
4 | Very severe obstacle | 534 |
2.9%
|