| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 0 | No Obstacle | 72 |
14.9%
|
| 1 | Minor Obstacle | 138 |
28.6%
|
| 2 | Moderate Obstacle | 155 |
32.2%
|
| 3 | Major Obstacle | 88 |
18.3%
|
| 4 | Very Severe Obstacle | 29 |
6%
|