This might be of interest to some.
https://www.ons.gov.uk/economy/inflationandpriceindices/articles/usingtransactionlevelrailfaresdatatotransformconsumerpricestatisticsuk/2022-06-28They say "If we had used these data and methods between February 2019 and February 2022, there would have been negligible impact on the headline rate for CPIH and
CPI▸ , but our understanding of what was driving price changes in this category would have been substantially improved."
Not sure I understand "It does not retail." has this been over-shortened to the point of unintelligibility?
The South West "or example we see that the South West is showing the highest level of inflation of all the regions. In this region, rail inflation is 4.5% higher in September 2020 than January 2019, and 9% higher by December 2021. By further inspecting the elementary aggregate indices for the South West, the main driver of this inflation is mostly because of a gradual increase in the price of advance fares (that are unregulated) in this region."