Wholesale prices in Japan jumped 9% in November from a year earlier, marking the steepest gain on record amid higher energy costs and a weak yen, Bank of Japan data showed Friday.

The prices of goods traded between companies gained for the ninth straight month, underscoring continued commodity inflation at a time marked by weak consumer demand after the economy took a hit from the COVID-19 pandemic.

The 9% year-on-year rise is the sharpest since comparable data became available in January 1981 and follows a revised 8.3% increase in October, the BOJ said.