| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | No Obstacle | 177 |
36.7%
|
| 1 | Minor Obstacle | 164 |
34%
|
| 2 | Moderate Obstacle | 92 |
19.1%
|
| 3 | Major Obstacle | 41 |
8.5%
|
| 4 | Very Severe Obstacle | 8 |
1.7%
|