By World Economic Forum ãã©ã¼ãã¹ã®ä¸çé·è çªä»ã§1993å¹´ãã2006å¹´ã¾ã§13å¹´é£ç¶é¦ä½ã ã£ããã«ã»ã²ã¤ãæ°ãä»ã¯ã¡ãã·ã³ã®å¯è±ªã«ã«ãã¹ã»ã¹ãªã ã»ã¨ã«ã¼æ°ãã«æããã¦ãããä¸ç·ããéãã¦æ åæ´»åããããªã©ãã¦ç®ç«ããªãåå¨ã¨ãªã£ã¦ãã¾ãããããã§ã2012å¹´ã®1å¹´éã§è³ç£ã70åãã«(ç´6110åå)ãå¢ãããããã§ãã Bill Gates Is $7 Billion Richer - Business Insider http://www.businessinsider.com/bill-gates-is-7-billion-richer-2013-1 Billionaires Worth $1.9 Trillion Seek Advantage in 2013 - Bloomberg http://www.bloomberg.com/news/2013-0
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