The 100 richest people in the world gained $241 billion in net worth last year, according to Bloomberg's Billionaires Index. Americans dominated the list, occupying five of the top 10 spots. This countdown of the top 10 wealthiest Americans features a casino mogul, software tycoons, and a lot of Wal-Mart money.
Among 2012 graduates of four-year colleges in the US, 71 percent finished school in debt, up from 68 percent in 2008, according to the report. The average estimated student debt: $29,400.
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