Summary of request
The data in this spreadsheet shows the indicative impact of transformed methodology on our headline inflation statistics: the Retail Prices Index (RPI), Consumer Prices Index (CPI) and consumer Prices Index including owner-occupiers' housing costs (CPIH).
We plan to introduce enhanced methods for our inflation statistics and Northern Ireland private rents transformations simultaneously from 2025. For this datset, we have only included indicative impacts from the improvements in our imputation methods and the introduction of consumption segments into our consumer prices hierarchy structure. For more information, please see the article linked below.
This data shows indicative indices from January 2019 to July 2024 had our improvements been introduced from February 2019.
Contact
For further information contact cpi@ons.gov.uk