| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 58 |
2.4%
|
| 2 | Not Applicable | 90 |
3.7%
|
| 3 | 1 Not an obstacle | 847 |
34.9%
|
| 4 | 2 Minor obstacle | 515 |
21.2%
|
| 5 | 3 Moderate obstacle | 528 |
21.8%
|
| 6 | 4 Major obstacle | 386 |
15.9%
|