 The U.S. continued to have the most billionaires in the world, with a record of 609, while China dropped to 324 (when not including Hong Kong, Macau and Taiwan).In the 32nd annual "Forbes" list of the world's billionaires, the aggregate wealth of the top 20 richest people on Earth amounted to about 13 percent of all billionaires' fortunes combined.A record of 2,208 billionaires were in the ranking and the total wealth was $9.1 trillion, up 18% since 2017.