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Data Starter: UK inflation rate (CPI), 2021-2026

Elizabeth Veal

16th October 2026

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What’s been happening to UK inflation in the past five years?

Using the Trading Economics chart (click on the 5Y one), do these data calculation questions:

  1. In what month was the peak of the UK’s cost-of-living crisis and how does this inflation rate compare to August 2026’s rate?
  2. Compare the average of the three highest rates of inflation in the past five years to (a) the average of the lowest, and (b) the average of the three months to August 2026.

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Elizabeth Veal

Liz has taught Economics for over 25 years, including several years as Head of Economics at leading schools.