This year's list was topped by Microsoft co-founder Bill Gates. He has been the richest person in the world for 18 out of the past 23 years. Although Gates has stepped down as the Microsoft chairman, he still enjoys a fortune of $86 billion. His fortune has increased by 11 billion since last year

Bill Gates is followed by Berkshire Hathaway chief Warren Buffet. Also known as Known as the "Oracle of Omaha", Buffet enjoys a net worth of $75.6 billion.

Amazon's chief Jeff Bezos has soared to the third spot this year with a total estimated wealth of $72.8 billion. Quick fact: Bezos owns nearly 17% of Amazon.com

Known as the richest man in Europe, Amancio Ortega comes in the fourth spot with an estimated wealth of $ 71.3 billion. Ortega is also the owner of Spanish soccer team Deportivo La Coruna.

Internet's famous entrepreneur and Chairman of Facebook, Mark Zuckerberg has been awarded the fifth spot this year, thanks to his ever increasing wealth. For this year, he is valued over $56 billion.

Mexico's richest man, Carlos Slim lands on the sixth spot. He and his family control a wealth of $54.5 billion. He is also the owner of Latin America's biggest mobile telecom firm 'America Movil'.

Larry Ellison, the founder of Oracle got in the seventh spot with a calculated wealth of $52.2 billion. Quick fact: Ellison never finished college.

The 81-year-old chairman and CEO of Koch Industries, Charles Koch was awarded the eighth spot. He is estimated to have amassed a wealth of $48.3 billion.

David Hamilton Koch, the brother of Charles Koch comes at the ninth spot with the same wealth as his brother ($48.3 billion). Quick fact: David Koch ran as the Libertarian Party's vice presidential candidate in 1980.

Michael Bloomberg, the co-founder of financial information and media company Bloomberg LP has landed the tenth spot with an estimated wealth of $47.5 billion