Carlos Slim, Bill Gates and Warren Buffett top Forbes's most rich list

Some numbers to mull over:
1,210: Number of billionaires in the world
199: New billionaires this year
$4.5 trillion: Total amount of wealth owned by those 1,210
$1.5 trillion: Total amount of wealth owned by U.S. billionaires
$74 trillion: Total GDP of the world
1: Billionaires in Finland (Antti Herlin, an elevator and escalator maker)
115: Billionaires in China
413: Billionaires in the U.S.
$74 billion: Total wealth of Carlos Slim, richest man in the world, Mexican telecom mogul and stakeholder in the New York Times
$56 billion: Total wealth of Bill Gates, second-richest man in the world, Harvard dropout and Microsoft founder
$88 billion: Amount of money Bill Gates would have had if he had not given away billions to charity,
$78 billion: The GDP of Croatia