In September 2020, the annual rate of change of the CPI was -2.0%.
The CPI in September 2021 compared with August 2021, increased by 2.4%. In September 2020, the monthly rate of change of the CPI was 2.0%.
The average CPI for the twelve - month period from October 2020 to September 2021, compared with the corresponding index for the period October 2019 to September 2020 decreased by 0.4%.
The annual rate of change of the average CPI between the twelve - month period October 2019 to September 2020 in comparison to the period October 2018 to September 2019 was -0.7%.