| Value |
Category |
| 1 |
Asphalt Tiles |
| 2 |
Concrete |
| 3 |
Wood |
| 4 |
Tin/metal |
| 5 |
Bricks |
| 6 |
Other (specify) |
| Sysmiss |
|
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.