July 2， 2018 （Xinhua） -- The cumulative number of foreign holidaymakers visiting Indonesia by May ratchet up 11.89 percent to 6.17 million people from a year ago， according to the national statistics bureau. On months， the arrivals also expanded 4.55 percent to 1.2 million people in May. China， followed by Malaysia， Timor Leste， Australia and Singapore， is the biggest source of foreign tourist arrivals in May.