People shop in a supermarket in Suifenhe City, northeast China's Heilongjiang Province, Dec. 11, 2020. (Xinhua/Wang He)

BEIJING, Jan. 11 (Xinhua) -- China's consumer price index (CPI), a main gauge of inflation, rose 0.2 percent year on year in December, up from a 0.5-percent decrease in November, the National Bureau of Statistics said Monday.