| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 4 |
0.8%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | No Obstacle | 194 |
40.2%
|
| 1 | Minor Obstacle | 148 |
30.7%
|
| 2 | Moderate Obstacle | 89 |
18.5%
|
| 3 | Major Obstacle | 37 |
7.7%
|
| 4 | Very Severe Obstacle | 10 |
2.1%
|