| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Earth | 480 |
40%
|
| 2 | Gravel | 432 |
36%
|
| 3 | Stone | 8 |
0.7%
|
| 4 | Muram | 0 |
0%
|
| 5 | Paved/ Tarred | 280 |
23.3%
|
| 6 | Concrete | 0 |
0%
|