| Value | Category | Cases | |
|---|---|---|---|
| -9 | DON'T KNOW | 6 |
0.6%
|
| -7 | DOES NOT APPLY | 4 |
0.4%
|
| 0 | No obstacle | 673 |
65.3%
|
| 1 | Minor obstacle | 135 |
13.1%
|
| 2 | Moderate obstacle | 129 |
12.5%
|
| 3 | Major obstacle | 69 |
6.7%
|
| 4 | Very severe obstacle | 14 |
1.4%
|
| Sysmiss | 2 |