| Value | Category | Cases | |
|---|---|---|---|
| 1 | Tiles | 8963 |
35.7%
|
| 2 | Brick | 117 |
0.5%
|
| 3 | Cement casting | 14170 |
56.4%
|
| 4 | Earth | 1640 |
6.5%
|
| 5 | Other | 239 |
1%
|
| Sysmiss | 17 |