| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 km | 117 |
3.6%
|
| 2 | 1-5 km | 409 |
12.7%
|
| 3 | More than 5 km | 548 |
17%
|
| 4 | Not applicable | 2142 |
66.5%
|
| Sysmiss | 4 |