| Value | Category | Cases | Weighted | |
|---|---|---|---|---|
| Distance | 20 | 20 |
11.3%
|
|
| Health problem | 12 | 11 |
6.5%
|
|
| The difficulty of transportation | 31 | 26 |
14.6%
|
|
| Weather conditions | 109 | 118 |
67.1%
|
|
| permit | 1 | 1 |
0.5%
|