| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Earth | 1408 |
58.7%
|
| 2 | Gravel | 376 |
15.7%
|
| 3 | Stone | 408 |
17%
|
| 4 | Muram | 32 |
1.3%
|
| 5 | Paved/ Tarred | 56 |
2.3%
|
| 6 | Concrete | 104 |
4.3%
|
| 7 | None of above | 16 |
0.7%
|