| Value | Category | Cases | |
|---|---|---|---|
| 1 | No obstacle | 2 |
50%
|
| 2 | Minor obstacle | 2 |
50%
|
| 3 | Moderate Obstacle | 0 |
0%
|
| 4 | Major obstacle | 0 |
0%
|
| 5 | Very severe obstacle | 0 |
0%
|
| 90 | Not applicable | 0 |
0%
|
| 97 | Refused | 0 |
0%
|
| 98 | Don't know | 0 |
0%
|
| 99 | Missing | 0 |
0%
|
| Sysmiss | 1721 |