| Value | Category | Cases | |
|---|---|---|---|
| -97 | Not applicable | 6 |
10.5%
|
| 1 | No obstacle | 32 |
56.1%
|
| 2 | Minor obstacle | 8 |
14%
|
| 3 | Moderate Obstacle | 5 |
8.8%
|
| 4 | Major obstacle | 4 |
7%
|
| 5 | Very severe obstacle | 2 |
3.5%
|
| 2147483622 | Don't know | 0 |
0%
|
| 2147483623 | Refused to respond | 0 |
0%
|
| 11 | .Z | 4060 |