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6541.0.30.001 - Microdata: Income and Housing, Australia, 2011-12 Quality Declaration 
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 04/10/2013   
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alt="" RECONCILIATION OF THE CURF DATA

RECONCILIATION OF CURF DATA AGAINST PUBLISHED ESTIMATES

It is not possible to reconcile exactly the data produced from the CURF with published data. This is as a result of the steps taken to preserve confidentiality. These steps include:

    • large households have been reduced to a maximum of eight people on the Expanded CURF and six people on the Basic CURF
    • the level of detail for some data items has been reduced (for example, state of usual residence of the ACT and the NT have been combined as ACT/NT for the Basic CURF, but shown individually for the Expanded CURF; area of usual residence for the ACT and NT has not been made available)
    • most income items, and some wealth and loan data have been perturbed
    • some variables have had values ranged, collapsed or topcoded
    • demographic information of some respondents has been changed.
A sample tabulation of SIH data for reconciliation and validation purposes is available from the Downloads tab. It presents key household income and characteristics estimates produced from the unconfidentialised file along with equivalent estimates from both the Expanded and Basic CURFs. A table showing the RSEs for the sample tabulation of the Expanded CURF estimates is also included.

Note that the full population estimate derived from the Basic CURF (22,090,520) is lower than that obtained from the Expanded CURF (22,183,105), and the unconfidentialised file (22,189,022). This is due to weights not being recalibrated to compensate for the reduction in household sizes on the CURFs.

Imputed rent data

The estimate of mean net imputed rent for 2011–12 is $106.24 per week. Estimates of mean net imputed rent produced from the SIH CURFs and the unconfidentialised file for all households vary by 10 cents. Users should refer to Table 18 in Household Income and Income Distribution, Australia, 2011–12 (cat. no. 6523.0) when validating estimates of imputed rent by tenure type. Estimates produced from the CURFs may differ slightly from those shown in the publications, because of action taken to ensure confidentiality.


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