Indicates whether a person was at home or elsewhere on Census night. It contains the answer to the Census question about usual residence, which asks if the person usually lived at the address on the front of the Census form (where they were on Census night), Elsewhere in Australia, or Overseas. In cases where a person did not state where they usually live, UAICP and 'Place of Usual Residence' (PURP) are imputed.
This variable, when used with Usual Address One Year Ago Indicator (UAI1P) and Usual Address Five Years Ago Indicator (UAI5P), and also with place of usual residence (PURP) data, shows migration patterns.
See also Imputation Flag for Usual Residence (IFPURP).