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Name | Age (2006) | Estimated Net Worth (2006) | Source of Wealth | Country of Citizenship | |
---|---|---|---|---|---|
1 | William Gates III | 50 | $50 billion | Microsoft/Investments | United States |
2 | Warren Buffett | 75 | 42 billion | Berkshire Hathaway/Investments | United States |
3 | Carlos Slim Helù | 66 | $30. billion | Telecommunications | Mexico |
4 | Ingvar Kamprad | 79 | $28 billion | Ikea | Sweden |
5 | Lakshmi Mittal | 55 | $23.5 billion | Inherited/steel industury | India |