The data, compiled from its own records by the owner of the online firm Opodo, eDreams ODIGEO, demonstrates that the biggest boosts have occurred not among fans of the traditional northern and southern hemisphere powerhouses but nations where the game is growing the most quickly. The study shows there will be 20 times more visitors than usual from the 2019 host nation Japan in the UK during the World Cup, 16 times more from Argentina, and 5½ times more from the United States.