| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 70 |
2.9%
|
| 2 | Not Applicable | 22 |
0.9%
|
| 3 | 1 Not an obstacle | 411 |
17%
|
| 4 | 2 Minor obstacle | 654 |
27%
|
| 5 | 3 Moderate obstacle | 780 |
32.2%
|
| 6 | 4 Major obstacle | 487 |
20.1%
|