| Value | Category | Cases | |
|---|---|---|---|
| 1 | Don't know | 58 |
2.4%
|
| 2 | Not Applicable | 20 |
0.8%
|
| 3 | 1 Not an obstacle | 379 |
15.6%
|
| 4 | 2 Minor obstacle | 632 |
26.1%
|
| 5 | 3 Moderate obstacle | 811 |
33.5%
|
| 6 | 4 Major obstacle | 524 |
21.6%
|