Comparability (geographic, over time)
While the ASGS will give a better platform for the analysis of time series into the future, it will also create a break in time series based on the ASGC.
The ABS will respond to this issue in several ways:
- The ABS will create a series of population and area based concordances between the ASGC regions and the new ASGS regions.
- Census data will be available on both the ASGS and ASGC regions in 2011, with the exception of Census Collection Districts (CCDs).
- Some historic demographic data will be recast on to the ASGS regions.
- It is possible to recast historical Labour Force statistics on to the new Statistical Areas Level 4 (SA4s). The ABS will consult with stakeholders on the most appropriate way of achieving this.
- Preserving the ASGC statistical divisions was a criteria in the design of the Statistical Area Level 2 (SA2) of the ASGS. It is therefore possible to reconstruct data for statistical divisions from SA2 data released under the ASGS.
Time series based on CCDs present a particular problem. The ABS Geography Section will advise users with a need to recast CCD based data on the best approach.
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