| Value |
Category |
| 1 |
reinforced concrete |
| 2 |
metal |
| 3 |
wood |
| 4 |
rustic mats |
| 5 |
straw / palm fronds |
| 6 |
Paperboard / Carton |
| 7 |
none |
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.