| Value |
Category |
| -2 |
do not know |
| -1 |
not applicable |
| 1 |
iron/metal |
| 2 |
asbestos |
| 3 |
tiles |
| 4 |
corrugated iron sheets |
| 5 |
grass/straw |
| 6 |
other |
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.