Warren Buffett is the nation's most generous billionaire, according to a new ranking by Condé Nast's Portfolio Magazine.
The November issue includes a list of the "50 wealthiest donors and their gifts," ranked by who is "giving the most, relative to their wealth."
Buffett comes in at number one, with $46.1 billion in donations between 2002 and 2006. Most of that, of course, comes from his pledge to give away the bulk of his fortune to the Bill and Melinda Gates Foundation.
Gates is number two on the magazine's list.
Rupert Murdoch of News Corp. is last on the list in the 50th position, with no gifts disclosed between 2002 and 2008.
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