| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes (i.e., less than 1 km) | 631 |
40.8%
|
| 2 | 15-30 minutes (i.e., 1-2 km) | 603 |
39%
|
| 3 | 30-45 minutes (i.e., 2-3 km) | 198 |
12.8%
|
| 4 | 45-60 minutes (i.e., 3-4 km) | 67 |
4.3%
|
| 5 | More than 60 minutes (i.e., more than 4 km) | 46 |
3%
|
| Sysmiss | 2696 |