“Big” Data in China Ali Data & WeChat Data In September 2017, The daily average users reached 902 million. The number of elderly users reached 50 million. The average daily WeChat messages reached 38 billion. Singles’ Day (“Double 11”) At 00:03:01 of November 11, the turnover was over 10 billion yuan! 2017 "Tmall Double 11 Global Carnival" turnover was over 168 billion 200 million yuan!