| Value | Category | Cases | |
|---|---|---|---|
| -1 | Missing | 0 |
0%
|
| 1 | Metal, tin or zinc | 1900 |
79.2%
|
| 2 | Tiles | 88 |
3.7%
|
| 3 | Shingles | 8 |
0.3%
|
| 4 | Thatch or grass | 291 |
12.1%
|
| 5 | Plastic sheets | 5 |
0.2%
|
| 6 | Asbestos | 3 |
0.1%
|
| 7 | Multiple materials | 32 |
1.3%
|
| 8 | Some other material | 60 |
2.5%
|
| 9 | Could not tell/could not see | 12 |
0.5%
|