Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 4 |
0.3%
|
-7 | Does not apply | 5 |
0.4%
|
0 | No obstacle | 429 |
35.3%
|
1 | Minor obstacle | 387 |
31.8%
|
2 | Moderate obstacle | 273 |
22.5%
|
3 | Major obstacle | 94 |
7.7%
|
4 | Very severe obstacle | 24 |
2%
|