The consumer price index climbed 7% in 2021, the largest 12-month gain since June 1982, according to Labor Department data released Wednesday. The widely followed inflation gauge rose 0.5% from November, exceeding forecasts.
Excluding the volatile food and energy components, so-called core prices accelerated from a month earlier, rising by a larger-than-forecast 0.6%. The measure jumped 5.5% from a year earlier, the biggest advance since 1991.
The increase in the CPI was led by higher prices for shelter and used vehicles. Food costs also contributed. Energy prices, which were a key driver of inflation through most of 2021, fell last month.