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.
PIGNUM reports the number of pigs owned by the household. The complementary variable PIGYN indicates whether the household owned any pigs.
The information in PIGNUM is taken from the household record, linked to the record of the woman respondent. This information applies to household residents, not temporary visitors, so researchers may wish to exclude visitors using the RESIDENT variable (with visitors coded "2").