| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 km | 125 |
3.9%
|
| 2 | 1-5 km | 372 |
11.6%
|
| 3 | More than 5 km | 632 |
19.6%
|
| 4 | Not applicable | 2087 |
64.8%
|
| Sysmiss | 4 |