China's online retail sales expanded 4 percent year on year in 2022 to near 13.8 trillion yuan (about 2 trillion U.S. dollars), the National Bureau of Statistics (NBS) said on Tuesday.In breakdown, online retail sales of physical goods climbed 6.2 percent year on year, NBS data showed.China's online retail sales expanded 4 percent year on year in 2022 to near 13.8 trillion yuan (about 2 trillion U.S. dollars), the National Bureau of Statistics (NBS) said on Tuesday.In breakdown, online retail sales of physical goods climbed 6.2 percent year on year, NBS data showed.