| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 29 |
1.2%
|
| 2 | Not Applicable | 75 |
3.1%
|
| 3 | 1 Not an obstacle | 940 |
38.8%
|
| 4 | 2 Minor obstacle | 608 |
25.1%
|
| 5 | 3 Moderate obstacle | 483 |
19.9%
|
| 6 | 4 Major obstacle | 289 |
11.9%
|