Cars run on a newly-built highway in southwest China's Chongqing, April 15, 2018. China's GDP reached 19.88 trillion yuan (about 3.2 trillion U.S. dollars) in the first three months of 2018, up 6.8 percent year on year at comparable prices, according to the National Bureau of Statistics (NBS). (Xinhua/Rao Guojun)