| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 3 |
0%
|
| 1 | Metal, aluminum, tin or zinc | 26744 |
58.4%
|
| 2 | Tiles | 1748 |
3.8%
|
| 3 | Shingles | 450 |
1%
|
| 4 | Thatch or grass | 6916 |
15.1%
|
| 5 | Plastic sheets | 468 |
1%
|
| 6 | Asbestos | 1455 |
3.2%
|
| 7 | Multiple materials | 2489 |
5.4%
|
| 8 | Concrete | 4668 |
10.2%
|
| 9 | Some other material | 706 |
1.5%
|
| 10 | Could not tell / could not see | 176 |
0.4%
|