Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 6 |
0.4%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 589 |
41.6%
|
1 | Minor obstacle | 289 |
20.4%
|
2 | Moderate obstacle | 204 |
14.4%
|
3 | Major obstacle | 146 |
10.3%
|
4 | Very severe obstacle | 181 |
12.8%
|