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class="wp-caption-text">Bill Gates

Bill Gates sits at the top of the latest Forbes 400 – a list of the richest people in America.

The chairman of Microsoft has come in at number one for the 19th year in a row with $66 billion – up $7 billion from a year earlier.

Investor Warren Buffett, the head of Berkshire Hathaway Inc., again took second place, while Oracle Corp. co-founder Larry Ellison remains third and brothers Charles and David Koch, co-owners of Koch Industries Inc., tied for fourth

There are 45 women on the list – including Oprah Winfrey, who is worth $2.7 billion dollars and ranked at 151.

The top 10 people on this year’s Forbes 400 list are:

• Bill Gates, co-founder and chairman of Microsoft, $66bn
• Warren Buffett, chairman and chief executive of Berkshire Hathaway, $46bn
• Larry Ellison, co-founder and chief executive of Oracle, $41bn
• Charles Koch, chairman and chief executive of Koch Industries, $31bn
• David Koch, co-owner and executive vice-president of Koch Industries, $31bn
• Christy Walton & family, heiress to Walmart fortune, $27.9bn
• Jim Walton, heir to Walmart fortune and chairman of Arvest Bank, $26.8bn
• Alice Walton, heiress to Walmart fortune, $26.3bn
• S Robson Walton, heir to Walmart fortune, $26.1 billion
• Michael Bloomberg, founder and principal owner of Bloomberg LP, $25bn.

You can read the full Forbes 400 list href="http://www.forbes.com/forbes-400/">here