 For the first time, Jeff Bezos was listed as the top billionaire due to Amazon's rising stock price that resulted in one person's biggest one-year gain in wealth ($35 billion) since "Forbes" started tracking in 1987.The U.S. had the most billionaires in the world, with 585, while China was catching up with 476 when including Hong Kong, Macau and Taiwan; it had 372 when excluding those three places.Forbes excluded Al-Walid bin Talal and all other Saudi billionaires due to the absence of accurate wealth estimations as a result of the 2017–19 Saudi Arabian purge.