| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 15 minutes (i.e., less than 1 km) | 1299 |
53.9%
|
| 2 | 15-30 minutes (i.e., 1-2 km) | 872 |
36.2%
|
| 3 | 30-45 minutes (i.e., 2-3 km) | 142 |
5.9%
|
| 4 | 45-60 minutes (i.e., 3-4 km) | 63 |
2.6%
|
| 5 | More than 60 minutes (i.e., more than 4 km) | 34 |
1.4%
|
| Sysmiss | 1831 |