Value | Category | Cases | |
---|---|---|---|
-9 | Don't know (spontaneous) | 2 |
0.2%
|
-8 | 1 |
0.1%
|
|
-7 | Does not apply | 4 |
0.4%
|
0 | No obstacle | 451 |
41.5%
|
1 | Minor obstacle | 192 |
17.7%
|
2 | Moderate obstacle | 258 |
23.8%
|
3 | Major obstacle | 120 |
11%
|
4 | Very severe obstacle | 58 |
5.3%
|