On January 26, Han Yimin, author of Tencent's "Front Line", delivered a speech at Ctrip's annual meeting in North China. Liang Jianzhao, co-founder and chairman of Ctrip, a demographic economist, and Sun Jie, Ctrip's CEO, presented the latest data. Liang Jianzhang said that future innovation opportunities are in China, because China has the largest population. He said that 11.8 billion people traveled around the world last year. Ctrip Group has only served 500 million people. There are still many opportunities in the future. For himself, Liang Jianzhang said, "I want to travel to 100 years old". Sun Jie, chief executive of Ctrip, said that in 2017, Ctrip GMV had reached a new high of 600 billion yuan, with a monthly life of more than 150 million yuan. (Ctrip CEO Sun Jie awarded awards for the conference) In 2017, Ctrip North China's business of group tours and free trade sold 3.2 billion yuan a year; the number of North China's playtime tickets increased nearly 100% year on year; Ctrip cruise industry ________.