WASHINGTON (AP) — Inflation at the wholesale level rose 8.6-percent last month from a year earlier, matching September’s record annual gain and offering more evidence that inflationary pressures are not yet easing.

The Labor Department reported Tuesday that its producer price index — which measures inflation before it hits consumers — rose 0.6-percent last month from September, pushed higher by surging gasoline prices. Excluding volatile food and energy prices, wholesale inflation was up 0.4-percent in October from September and 6.8-percent from a year ago.

More than 60-percent of the September-October increase in overall producer prices was caused by a 1.2-percent increase in the price of wholesale goods as opposed to services. A 6.7-percent jump in wholesale gasoline prices helped drive goods prices up.

Mostly dormant for decades, inflation has returned to the United States this year. The economy’s strong rebound from the 2020 coronavirus caught many businesses by surprise. Their scramble to meet unexpectedly strong demand has created shortages of labor, raw materials and goods and snarled traffic at ports and freight yards. The result has been higher prices, and the supply squeeze is expected to last at least well into 2022.

“Since the pandemic, supply chains have never been the same and likely won’t normalize for several more months,” Contingent Macro Advisors said in a research note.

On Wednesday, the Labor Department will release its consumer price index for last month. According to a survey of economists by FactSet, it is expected to show that consumer prices rose 0.5-percent from September and 5.8-percent from a year earlier — beating September’s 5.4-percent year-over-year gain, the fastest since 2008.