Photographs: Henry Romero/Reuters.
The United States leads the Forbes 2013 billionares list with 442 billionaires, followed by Asia-Pacific (386), Europe (366), the Americas (129) and the Middle East & Africa (103).
Take a look at the richest people in these 30 countries...
Country: Mexico
Carlos Slim Helu
Net worth: $73 billion
Forbes rank: 1
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Meet the richest person in these 30 countries
Image: Microsoft founder and philanthropist Bill Gates.Photographs: Henry Romero/Reuters.
Country: America
Bill Gates
Net worth: $67 billion
Forbes rank: 2
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Image: Chairman and Managing Director of Reliance Industries Mukesh Ambani.Photographs: Pascal Lauener/Reuters.
Country: India
Mukesh Ambani
Net worth: $21.5 billion
Forbes rank: 22
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Image: Amancio Ortega.Photographs: Miguel Vidal/Reuters.
Country: Spain
Amancio Ortega
Net worth: $57 billion
Forbes rank: 3
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Image: Red Bull owner Dietrich Mateschitz.Photographs: Lisi Niesner/Reuters.
Country: Austria
Dietrich Mateschitz
Net worth: $7.1 billion
Forbes rank: 162
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Image: Kjeld Kirk Kristiansen, owner and CEO of the Denmark-based plastic toy company LEGO.Photographs: Reuters.
Country: Denmark
Kjeld Kirk Kristiansen
Net worth: $7.3 billion
Forbes rank: 158
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Image: Tsai Eng-Meng.Photographs: Courtesy, paisawaisa.com
Country: Taiwan
Tsai Eng-Meng
Net worth: $9.8 billion
Forbes rank: 112
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Image: Petr Kellner.Country: Czech Republic
Petr Kellner
Net worth: $10.4 billion
Forbes rank: 106
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Image: Charlene de Carvalho-Heineken.Country: The Netherlands
Charlene de Carvalho-Heineken
Net worth: $11 billion
Forbes rank: 94
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Image: Ernesto Bertarelli.Photographs: Wikimedia Commons.
Country: Switzerland
Ernesto Bertarelli
Net worth: $11 billion
Forbes rank: 94
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Image: Gerald Cavendish Grosvenor.Photographs: Wikimedia Commons.
Country: Britain
Gerald Cavendish Grosvenor
Net worth: $11.4 billion
Forbes rank: 89
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Image: John Fredriksen.Photographs: Reuters.
Country: Cypress
John Fredriksen
Net worth: $11.5 billion
Forbes rank: 87
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Image: Zong Qinghou.Photographs: Wikimedia Commons.
Country: China
Zong Qinghou
Net worth: $11.6 billion
Forbes rank: 86
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Image: Robert Kuok.Country: Malaysia
Robert Kuok
Net worth: $12.5 billion
Forbes rank: 76
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Image: Lee Kun-Hee.Photographs: Reuters.
Country: South Korea
Lee Kun-Hee
Net worth: $13 billion
Forbes rank: 69
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Image: Tadashi Yanai, chairman and chief executive of Fast Retailing Co, operator of Uniqlo casual fashion chain.Photographs: Yuriko Nakao/Reuters.
Country: Japan
Tadashi Yanai
Net worth: $13.3 billion
Forbes rank: 66
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Meet the richest person in these 30 countries
Image: Colombian businessman Luis Carlos Sarmiento (L) shakes hands with Nobel laureate Mohammed Yunus.Photographs: Fredy Builes/Reuters.
Country: Columbia
Luis Carlos Sarmiento
Net worth: $13.9 billion
Forbes rank: 64
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Image: Rinat Akhmetov.Photographs: Wikimedia Commons.
Country: Ukraine
Rinat Akhmetov
Net worth: $15.4 billion
Forbes rank: 47
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Image: Aliko Dangote.Photographs: Wikimedia Commons.
Country: Nigeria
Aliko Dangote
Net worth: $16.1 billion
Forbes rank: 43
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Meet the richest person in these 30 countries
Image: Gina Rinehart (Inset).Country: Australia
Gina Rinehart
Net worth: $17 billion
Forbes rank: 36
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Image: Iris Fontbona (Inset).Country: Chile
Iris Fontbona
Net worth: $17.4 billion
Forbes rank: 35
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Image: Alisher Usmanov.Photographs: Wikimedia Commons.
Country: Russia
Alisher Usmanov
Net worth: $17.6 billion
Forbes rank: 34
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Meet the richest person in these 30 countries
Image: Jorge Paulo Lemann.Photographs: Courtesy,yourbest100.com.
Country: Brazil
Jorge Paulo Lemann
Net worth: $17.8 billion
Forbes rank: 33
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Meet the richest person in these 30 countries
Image: Saudi Prince Alwaleed bin Talal bin Abdul Aziz Alsaud.Photographs: Ahmad Masood/Reuters.
Country: Saudi Arabia
Prince Alwaleed Bin Talal Alsaud
Net worth: $20 billion
Forbes rank: 26
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Image: Thomson Reuters Chairman David Thomson.Photographs: Mark Blinch/Reuters.
Country: Canada
David Thomson
Net worth: $20.3 billion
Forbes rank: 24
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Image: Michele Ferrero.Country: Italy
Michele Ferrero
Net worth: $20.4 billion
Forbes rank: 23
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Image: Karl Albrecht.Photographs: Reuters.
Country: Germany
Karl Albrecht
Net worth: $26 billion
Forbes rank: 18
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Image: Stefan Persson.Photographs: Reuters.
Country: Sweden
Stefan Persson
Net worth: $28 billion
Forbes rank: 12
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Image: Liliane Bettencourt.Photographs: Reuters.
Country: France
Liliane Bettencourt
Net worth: $30 billion
Forbes rank: 9
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Meet the richest person in these 30 countries
Image: Hutchison Whampoa Chairman Li Ka-shing.Photographs: Reuters.
Country: Hong Kong
Li Ka-Shing
Net worth: $31 billion
Forbes rank: 8
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