| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Earth | 504 |
31.5%
|
| 2 | Gravel | 96 |
6%
|
| 3 | Stone | 56 |
3.5%
|
| 4 | Muram | 32 |
2%
|
| 5 | Paved/ Tarred | 864 |
54%
|
| 6 | Concrete | 48 |
3%
|