This year, Mexican tycoon Carlo Slim Helu beat out Americans Bill Gates and Warren Buffett to become the wealthiest person in the world and top the 2010 Forbes list of the world's billionaires.
Slim's fortune is an estimated $53.5 billion dollars.
Gates, now worth $53 billion, is ranked second in the world.
Warren Buffett's fortune jumped $10 billion to $47 billion on rising shares of Berkshire Hathaway, he now ranks third.
The minimum net worth to be named to the list is 1.3 billion.
U.S. billionaires still dominate the ranks, accounting for 40-percent of the world's billionaires.
And for the first time China has the most billionaires outside the U.S. with 89, Russia has 62 billionaires and Finland and Pakistan both welcomed their first billionaires.
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