The Office for National Statistics said the consumer prices index rose by 10.1% in the year to July, up from a reading of 9.4% in June and entering double figures at an earlier stage than anticipated. The figure was last higher in February 1982.
It is only the fourth time in 70 years that inflation has breached the 10% threshold, the other periods being 1951-52, 1973-77 and 1979-82.
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