| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | No Obstacle | 85 |
17.6%
|
| 1 | Minor Obstacle | 117 |
24.3%
|
| 2 | Moderate Obstacle | 113 |
23.4%
|
| 3 | Major Obstacle | 97 |
20.1%
|
| 4 | Very Severe Obstacle | 70 |
14.5%
|