Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 18 |
0.1%
|
-7 | Does not apply | 94 |
0.5%
|
0 | No obstacle | 10520 |
56.4%
|
1 | Minor obstacle | 4574 |
24.5%
|
2 | Moderate obstacle | 2177 |
11.7%
|
3 | Major obstacle | 850 |
4.6%
|
4 | Very severe obstacle | 424 |
2.3%
|