The number of billionaires in the world has increased by 346, reaching a record total of 2,816 with wealth of $11.2 trillion. Amazon founder Jeff Bezos takes the crown among these billionaires with wealth of $140 billion, followed by Bernard Arnault and Bill Gates with wealth at $107 and $106 billion respectively. The total wealth of the top 10 billionaires was nearly $1 trillion. Hurun said the TMT industry is the main source of wealth for the world's billionaires, generating 18 percent of total wealth. This year's list has 90 billionaires aged 40 or under, up 5 from last year, 54 self-made billionaires and 36 inherited billionaires.