Nearly all of the world's billionaires got richer last year, according to the Forbes Billionaire List.
There were a few losers. And a few massive winners.
The big winners include tycoons from Russia, Ukraine, Nigeria and Mexico, led by Carlos Slim who gained $20.5 billion.
Mark Zuckerberg and other Facebook people hit the jackpot, but the most successful American was casino-owner Sheldon Adelson who gained $14 billion.
Click here to see the winners.
Read more at Business Insider.
