| Value | Category | Cases | |
|---|---|---|---|
| 1 | adjacent | 5 |
5.3%
|
| 2 | less than 30 minutes | 48 |
50.5%
|
| 3 | between 30 minutes and 1 hour | 30 |
31.6%
|
| 4 | one to three hours walking | 11 |
11.6%
|
| 5 | more than 3 hours | 1 |
1.1%
|
| Sysmiss | 2060 |