A freight train loaded with imported vehicles arrives at the container terminal in Xi'an of northwest China's Shaanxi Province, June 13, 2018. China's rail freight volume, an indicator of broad economic activity, rose 9.1 percent year on year in 2018, according to the China Railway Corporation. Railways carried 4.02 billion tonnes of freight last year, 334 million tonnes more than the previous year, data from the company showed. (Xinhua/Li Yibo)