The Consumer Price Index registered no change on a monthly basis in September, the third successive month that the CPI has been on the slide.

The monthly increase in CPI this year peaked at 1.3% in June, followed by 0.4% in July, 0.2% in August and now zero in September 2022.

The estimate of annual cost of living inflation also peaked in June, at 9.1%, and has declined in successive months to 8.2% in September.

On the HICP measure, used for pan-European comparisons, consumer prices in September were 8.6% higher than a year earlier.

The CPI divisions with the largest increases in the year to September were Housing and Utilities (+20.0%) and Transport (+11.3%).

The CPI divisions with the largest increases in the month were Clothing & Footwear (+4.0%) and Housing and Utilities (+1.4%).

The categories with the largest decreases in the month were Transport (-3.6%) and Restaurants & Hotels (-0.3%).

Statistician Anthony Dawson commented: “Increased energy costs are reflected in the yearly increase of Housing, Water, Electricity, Gas & Other Fuels, with electricity up 36.2%, gas up 53.1%, home heating oil up 83.8% and solid fuels up 32.5% in the year.

“The annual change in transport costs for September 2022 reflects a rise in the cost of diesel (+32.5%), petrol (+15.1%), purchase of motor cars (+11.2%) and airfares.”

The CSO has also published the National Average Price for a number of items for September 2022.

There were price increases in an 800g loaf of white sliced pan (+26c), 2 litres of full fat milk (+41c) and a pound of butter (+67c) compared with September 2021.