| Value | Category | Cases | |
|---|---|---|---|
| -9 | DON'T KNOW | 3 |
100%
|
| -7 | DOES NOT APPLY | 0 | |
| No obstacle | 0 | ||
| 1 | Minor obstacle | 0 | |
| 2 | Moderate obstacle | 0 | |
| 3 | Majorobstacle | 0 | |
| 4 | Very Severe Obstacle | 0 |