| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 59 |
2.4%
|
| 2 | Not Applicable | 59 |
2.4%
|
| 3 | 1 Not an obstacle | 964 |
39.8%
|
| 4 | 2 Minor obstacle | 668 |
27.6%
|
| 5 | 3 Moderate obstacle | 469 |
19.3%
|
| 6 | 4 Major obstacle | 205 |
8.5%
|