| Value | Category | Cases | |
|---|---|---|---|
| -99 | Refuse to answer | 0 |
0%
|
| -88 | No answer | 0 |
0%
|
| -77 | Not applicable | 0 |
0%
|
| -66 | Don't know | 0 |
0%
|
| 0 | No obstacle | 51 |
20.4%
|
| 1 | Minor obstacle | 106 |
42.4%
|
| 2 | Moderate obstacle | 61 |
24.4%
|
| 3 | Major obstacle | 17 |
6.8%
|
| 4 | Very severe obstacle | 15 |
6%
|