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.
Circle the correct code for the material of the exterior walls, based on your observation. You will be able to observe the correct answer in most cases, but if in doubt, ask. If there is more than one kind of material making up the walls at different parts of the household, record the main wall material (the material that covers the largest amount of wall space).