| Value |
Category |
| 1 |
Bricks |
| 2 |
Don't know |
| 3 |
Fabric |
| 4 |
Metal |
| 5 |
None |
| 6 |
Plastic sheeting |
| Missing value |
|
| 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.
