| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 km | 922 |
28.6%
|
| 2 | 1-5 km | 1351 |
42%
|
| 3 | More than 5 km | 374 |
11.6%
|
| 4 | Not applicable | 569 |
17.7%
|
| Sysmiss | 4 |