Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 33 |
0.2%
|
-7 | Does not apply | 54 |
0.3%
|
0 | No obstacle | 8392 |
45%
|
1 | Minor obstacle | 4225 |
22.6%
|
2 | Moderate obstacle | 2824 |
15.1%
|
3 | Major obstacle | 2004 |
10.7%
|
4 | Very severe obstacle | 1125 |
6%
|