| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 8 |
0.3%
|
| 1 | Earth | 920 |
38.5%
|
| 2 | Gravel | 24 |
1%
|
| 3 | Stone | 48 |
2%
|
| 4 | Muram | 866 |
36.2%
|
| 5 | Paved/ Tarred | 510 |
21.3%
|
| 6 | Concrete | 16 |
0.7%
|