Annual weight update of the CPI
This issue includes the introduction of updated CPI weighting patterns. A comparison between the 2021 and 2022 weights can be found in the appendix. It should be noted that the annual reweight this year had a larger impact on the CPI than usual due to the significant changes in spending patterns over 2021 and 2022. The annual movement of the monthly CPI indicator in October, using the previous weights, would have been 7.1 per cent compared to 6.9 per cent using the new weights.
Annually re-weighting the CPI ensures that the CPI basket continues to be representative of spending by Australian households. Further details on annually re-weighting the CPI can be found in the information paper An Implementation Plan to Annually Re-weight the Australian CPI, 2017.