| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| Distance | 3 | 3 |
12.7%
|
|
| Health problem | 3 | 3 |
12.4%
|
|
| The difficulty of transportation | 3 | 3 |
11.5%
|
|
| Weather conditions | 13 | 15 |
59.5%
|
|
| deisel | 1 | 1 |
4%
|