Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 10 |
1%
|
-7 | Does not apply | 1 |
0.1%
|
0 | No obstacle | 510 |
51.3%
|
1 | Minor obstacle | 323 |
32.5%
|
2 | Moderate obstacle | 131 |
13.2%
|
3 | Major obstacle | 17 |
1.7%
|
4 | Very severe obstacle | 3 |
0.3%
|