| Value | Category | Cases | |
|---|---|---|---|
| 1 | METAL / ZINC | 162 |
7.2%
|
| 2 | ROOF TILES | 15 |
0.7%
|
| 3 | CONCRETE | 2 |
0.1%
|
| 4 | SLATE | 2069 |
91.5%
|
| 999 | OTHER (SPECIFY) | 14 |
0.6%
|