| Value | Category | Cases | |
|---|---|---|---|
| 1 | grass | 21 |
5.4%
|
| 2 | iron sheets | 291 |
75.4%
|
| 3 | clay tiles | 29 |
7.5%
|
| 4 | plastic sheeting | 10 |
2.6%
|
| 5 | other | 20 |
5.2%
|
| 6 | dont know or no response | 15 |
3.9%
|