| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 km | 663 |
18.4%
|
| 2 | 1-5 km | 1267 |
35.1%
|
| 3 | More than 5 km | 841 |
23.3%
|
| 4 | Not applicable | 832 |
23.1%
|
| Sysmiss | 4 |