| Value | Category | Cases | |
|---|---|---|---|
| -7.0 | 30 |
38.5%
|
|
| -9.0 | 1 |
1.3%
|
|
| 0 | 40 |
51.3%
|
|
| 1 | 5 |
6.4%
|
|
| on road 20 km away | 1 |
1.3%
|
|
| roadside | 1 |
1.3%
|