| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 46 |
1.9%
|
| 2 | Not Applicable | 123 |
5.1%
|
| 3 | 1 Not an obstacle | 849 |
35%
|
| 4 | 2 Minor obstacle | 663 |
27.4%
|
| 5 | 3 Moderate obstacle | 497 |
20.5%
|
| 6 | 4 Major obstacle | 246 |
10.1%
|