Richest people on the planet 2015

Published On: Mar 08 2012 09:56:15 AM CST   Updated On: Mar 02 2015 09:37:33 AM CST

A familiar face once again tops Forbes' list of the world's richest billionaires.

Christy Walton
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Alberto E. Rodriguez/Getty Images

8. Christy Walton & Family -- The Wal-Mart heiress is the world's richest woman, worth an estimated $41.7 billion.

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