| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 5km | 1 |
3.6%
|
| 2 | Between 5-10km | 4 |
14.3%
|
| 3 | Between 10-20km | 2 |
7.1%
|
| 4 | More than 20km | 21 |
75%
|
| Sysmiss | 1215 |