Detailed information about the richest people of the world.

You can find information about the followings:
Bill Gates, Warren Buffett, Carlos Slim Helú, Lawrence Ellison, Ingvar Kamprad, Karl Albrecht, Mukesh Ambani, Lakshmi Mittal, Theo Albrecht, Amancio Ortega, Jim Walton, Alice Walton, Christy Walton, S. Robson Walton, Bernard Arnault, Li Ka-shing, Michael Bloomberg, Stefan Persson, Charles Koch, David H. Koch, Liliane Bettencourt, Prince Alwaleed Bin Talal Alsaud, Michael Otto, David Thomson, Michael Dell, Donald Bren, Sergey Brin, Larry Page, Steven Ballmer, The Duke of Westminster, George Soros, Paul Allen, Walter Kwok, Anil Ambani, Abigail Johnson, Susanne Klatten, Ronald Perelman, Hans Rausing, Birgit Rausing, Michele Ferrero, Mikhail Prokhorov, Jack C. Taylor, Mohammed Al Amoudi, Anne Cox Chambers, Carl Icahn, George Kaiser, Lee Shau Kee, Forrest Edward Mars, Jr., Jacqueline Mars, John Mars, Roman Abramovich, Ernesto Bertarelli, Philip Knight, Nasser Al-Kharafi, James Simons, Alain Wertheimer, Abdul Aziz Al Ghurair, Vahid Alakbarov, Sunil Mittal, François Pinault, Eike Batista, Maan Al-Sanea, Edward Johnson, III, Ananda Krishnan, Robert Kuok, Joseph Safra, Jeffrey Bezos, August von Finck, Jr., Silvio Berlusconi, Leonardo Del Vecchio, Curt Engelhorn, Mikhail Fridman, Sulaiman Al Rajhi, James Goodnight, Petr Kellner, John Kluge, John Paulson, Tadashi Yanai, Dan Duncan, Alberto Bailleres, Azim Premji, Hansjorg Wyss, Steven A. Cohen, Ng Teng Fong, Patrick Soon-Shiong, Serge Dassault, Erivan Haub, Jorge Paulo Lemann, Eli Broad, Kunio Busujima, Karl-Heinz Kipp, Vladimir Lisin, Reinhold Wurth, Philip Anschutz, Kirk Kerkorian, Nicky Oppenheimer, David and Simon Reuben, Kushal Pal Singh, Galen Weston, Mian Mohammad Mansha