Its the largest annual increase in 13 years.
The cost of goods and services rose by 3.7 per cent in the year to September.
That's the largest annual increase in prices since October 2008, when the figure was four per cent.
CSO figures show the areas which saw the largest price increases in the year were transport, housing, water , electricity and gas.
There was a decrease in the cost of clothing and footwear.

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