| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Earth | 840 |
35%
|
| 2 | Gravel | 40 |
1.7%
|
| 3 | Stone | 64 |
2.7%
|
| 4 | Muram | 840 |
35%
|
| 5 | Paved/ Tarred | 600 |
25%
|
| 6 | Concrete | 16 |
0.7%
|
| 7 | None of above | 0 |
0%
|