All consumption goods and services purchased by households in capital cities.
Data are available as a weighted average of capital cities and for individual capital cities.
Pricing samples are taken for a range of good and services from a sample of retail outlets.
Transactions data from some outlets are also recorded.
Information used to calculate the CPI is collected from:
- personal visits to retailers
- online and telephone calls
- administrative data, including transactions data
Concepts, sources and methods
Descriptions of the underlying concepts and methods used are available in Consumer Price Index: Concepts, Sources and Methods, 2018.
History of changes
From the December quarter 2017, the CPI is re-weighted annually.