| Value | Category | Cases | |
|---|---|---|---|
| 1 | Tar/Asphalt Graded | 89 |
15.8%
|
| 2 | Graveled | 117 |
20.8%
|
| 3 | Dirt Road (maintained) | 242 |
43.1%
|
| 4 | Dirt track | 114 |
20.3%
|
| Sysmiss | 2 |