| Value | Category | Cases | |
|---|---|---|---|
| 1 | dirt road | 5022 |
31.6%
|
| 2 | gravel road | 1858 |
11.7%
|
| 3 | tar road | 8969 |
56.5%
|
| 4 | 21 |
0.1%
|
|
| Sysmiss | 6576 |