| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 25 |
1%
|
| 2 | Not Applicable | 3 |
0.1%
|
| 3 | 1 Not an obstacle | 269 |
11.1%
|
| 4 | 2 Minor obstacle | 596 |
24.6%
|
| 5 | 3 Moderate obstacle | 855 |
35.3%
|
| 6 | 4 Major obstacle | 676 |
27.9%
|