File photo: Local residents select vegetables at a supermarket in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, Oct. 16, 2017. China's consumer price index (CPI) rose 1.6 percent year on year in September, the National Bureau of Statistics said Monday. (Xinhua/Li Ran)

BEIJING, Jan. 10 (Xinhua) -- China's consumer price index (CPI), a main gauge of inflation, rose 1.6 percent year on year in 2017, down from 2 percent for 2016, the National Bureau of Statistics said Wednesday.