| Value |
Category |
| Error (not indicated) |
|
| Tar |
|
| cinka |
|
| error |
|
| lime |
|
| membrane |
|
| not roofed |
|
| onduline |
|
| pitch |
|
| soft plastic |
|
| tar |
|
| tin |
|
| zinc |
|
| zinc and tin |
|
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.
