| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 75 |
3.1%
|
| 2 | Not Applicable | 15 |
0.6%
|
| 3 | 1 Not an obstacle | 273 |
11.3%
|
| 4 | 2 Minor obstacle | 557 |
23%
|
| 5 | 3 Moderate obstacle | 803 |
33.1%
|
| 6 | 4 Major obstacle | 701 |
28.9%
|