| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 km | 455 |
14.1%
|
| 2 | 1-5 km | 1154 |
35.8%
|
| 3 | More than 5 km | 897 |
27.9%
|
| 4 | Not applicable | 710 |
22%
|
| Sysmiss | 4 |