<P> Family fortunes dispersed over a large number of relatives are included only if those individuals' holdings are worth more than a billion dollars . However, when a living individual has dispersed his or her wealth to immediate family members, it is included under a single listing provided that individual is still living . Royal families and dictators that have their wealth contingent on a position are always excluded from these lists . </P> <P> The rankings are published annually in March, so the net worth listed are snapshots taken at that time . These lists only show the top 10 wealthiest billionaires for each year . </P> <P> In the 32nd annual Forbes list of the world's billionaires, the gap between the top one percent and the rest of the billionaires continued to widen with the 20 richest people on the planet worth $1.2 trillion that amounts to 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 . 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. continued to have the most billionaires in the world, with a record of 585, while China is catching up with 476 (when including Hong Kong, Macau and Taiwan). </P> <Table> <Tr> <Th> No . </Th> <Th> Name </Th> <Th> Net worth (USD) <P> (March 2018) </P> </Th> <Th> Age </Th> <Th> Nationality </Th> <Th> Source (s) of wealth </Th> </Tr> <Tr> <Td> 7000100000000000000 ♠ 1 </Td> <Td> Jeff Bezos </Td> <Td> $112 billion </Td> <Td> 54 </Td> <Td> United States </Td> <Td> Amazon </Td> </Tr> <Tr> <Td> 7000200000000000000 ♠ 2 </Td> <Td> Bill Gates </Td> <Td> $90 billion </Td> <Td> 62 </Td> <Td> United States </Td> <Td> Microsoft </Td> </Tr> <Tr> <Td> 7000300000000000000 ♠ 3 </Td> <Td> Warren Buffett </Td> <Td> $84 billion </Td> <Td> 87 </Td> <Td> United States </Td> <Td> Berkshire Hathaway </Td> </Tr> <Tr> <Td> 7000400000000000000 ♠ 4 </Td> <Td> Bernard Arnault </Td> <Td> $72 billion </Td> <Td> 69 </Td> <Td> France </Td> <Td> LVMH </Td> </Tr> <Tr> <Td> 7000500000000000000 ♠ 5 </Td> <Td> Mark Zuckerberg </Td> <Td> $71 billion </Td> <Td> 33 </Td> <Td> United States </Td> <Td> Facebook </Td> </Tr> <Tr> <Td> 7000600000000000000 ♠ 6 </Td> <Td> Amancio Ortega </Td> <Td> $70 billion </Td> <Td> 81 </Td> <Td> Spain </Td> <Td> Inditex, Zara </Td> </Tr> <Tr> <Td> 7000700000000000000 ♠ 7 </Td> <Td> Carlos Slim </Td> <Td> $67.1 billion </Td> <Td> 78 </Td> <Td> Mexico </Td> <Td> América Móvil, Grupo Carso </Td> </Tr> <Tr> <Td> 7000800000000000000 ♠ 8 </Td> <Td> Charles Koch </Td> <Td> $60 billion </Td> <Td> 82 </Td> <Td> United States </Td> <Td> Koch Industries </Td> </Tr> <Tr> <Td> 7000800000000000000 ♠ 8 </Td> <Td> David Koch </Td> <Td> $60 billion </Td> <Td> 77 </Td> <Td> United States </Td> <Td> Koch Industries </Td> </Tr> <Tr> <Td> 7001100000000000000 ♠ 10 </Td> <Td> Larry Ellison </Td> <Td> $58.5 billion </Td> <Td> 73 </Td> <Td> United States </Td> <Td> Oracle Corporation </Td> </Tr> </Table>

Who is number one on the forbes list