Carlos Slim still world's richest man

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NEW YORK, March 4 (UPI) -- Forbes magazine said Mexican telecommunications tycoon Carlos Slim Helu kept his perch as the richest person in the world in 2013.

Helu, worth $73 billion, has been at the top of the billionaire list for four consecutive years. This year, his value stayed ahead of Microsoft founder Bill Gates, valued at $67 billion, former Chairman of Inditex Amancio Ortega, valued at $57 billion and investment giant Warren Buffett, with an estimated net worth of $53.5 billion.

Ortega posted the largest gains in the year, adding $19.5 billion to his net worth, which pushed Buffett out of the top three for the first time since 2000.

The top 10 also includes co-founder of Oracle Corp. Larry Ellison, worth $43 billion; businessmen Charles and David Koch, each worth $34 billion; Chairman of Hutchison Whampoa Li Ka-shing, worth $31 billion; L'Oreal-connected Liliane Bettencourt and family, worth $30 billion, and LVMH-connected Bernard Arnault and family, worth $29 billion.

The average age among the top 10 is 74.2 years with the oldest, Liliane Bettencourt age 90 and the youngest Bill Gates, a spry 57-years-old.