Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 12 |
0.1%
|
-7 | Does not apply | 32 |
0.3%
|
0 | No obstacle | 3649 |
38.9%
|
1 | Minor obstacle | 2363 |
25.2%
|
2 | Moderate obstacle | 2099 |
22.4%
|
3 | Major obstacle | 1023 |
10.9%
|
4 | Very severe obstacle | 198 |
2.1%
|