2901.0 - Census of Population and Housing: Census Dictionary, 2016
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 23/08/2016
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Age has been collected in all Australian Censuses. Age data, combined with sex data, are essential for the production of accurate population estimates based on the Census count.
The 2016 Census form asks respondents to provide the date of birth for each person on the form, or age in years if date of birth is not known. Age is calculated from date of birth when provided, otherwise stated age is used. Age data is only output in whole years. If neither age nor date of birth is provided, age is imputed using other information on the form and using an age distribution of the population. The variable Imputation Flag for Age (IFAGEP) is used to indicate if a person's age has been imputed for the Census. Also for 2016, the phrase 'last birthday' has been removed from the text of this question as it was found to be potentially confusing
For 2016, AGEP classifies each person's age into single year categories, from 0 to 115 years. For infants aged less than one year, 0 years of age is recorded.
Age is used during processing as a cross check with other variables; for example, the age of the respondent determines whether particular questions asked in the Census are applicable.
If age is under 15 years, then the following person variables are not applicable:
The following age constraints also apply:
See also Derivations and imputations, Estimated Resident Population (ERP), Imputation variables.