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Age has been collected in all Australian censuses. Age data, combined with sex data, is essential for the production of accurate population estimates based on the Census count.
For 2001 AGEP classifies each person's age into single year categories, from 0 to 99 years, and 100 years or more. The upper limit of the 1996 categories was 99 years or more. For infants aged less than one year, 0 years of age is recorded. When no age is reported, the ABS imputes an age using other information on the form and information on age distribution of the population.
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.
The following age constraints apply:
Highest Level of Schooling Completed (HSCP)
Hours Worked (HRSP)
Individual Income (weekly) (INCP)
Industry of Employment (INDP)
Industry Sector (GNGP)
Journey to Work: Destination Zone (JTWDZNP)
Journey to Work: Study Area (JTWSAP)
Labour Force Status/Status in Employment (LFSP)
Method of Travel to Work (MTWP)
Non-School Qualification: Field of Study (QALFP)
Non-School Qualification: Level of Education (QALLP)
Non-School Qualification: Year Completed (QALYP)
Registered Marital Status (MSTP)
Social Marital Status (MDCP)
See also Derivations and imputations, Estimated Resident Population (ERP).