Annual headline and underlying inflation
Underlying inflation = trimmed mean measure.
Annual movements prior to April 2025 are calculated by comparing each quarter to the same quarter in the previous year. From April 2025, these movements are calculated by comparing each month to the same month in the previous year.
Annual movements prior to April 2025 are calculated by comparing each quarter to the same quarter in the previous year. From April 2025, these movements are calculated by comparing each month to the same month in the previous year.
