Question: What rank is the world 's billionaire on 2013 rankings , who was born in Omaha , Nebraska ?

text: The World's Billionaires
Annual rankings -- 2013
Main article : The World 's Billionaires 2013 Carlos Slim topped the 2013 billionaire list , marking his fourth consecutive year at the top . Gates remained in second , while Amancio Ortega moved up to third . Ortega 's gain of $ 19.5 billion was the largest of anyone on the list . [ 30 ] Warren Buffett failed to make the top three for the first time since 2000 , placing fourth . Diesel founder Renzo Rosso was among the top newcomers , debuting with an estimate net worth of $ 3 billion . [ 31 ] A global rise in asset prices led Forbes editor Randall Lane to declare `` It [ was ] a very good year to be a billionaire '' . However , it was not a good year to be Eike Batista , who fell from seventh to 100th , suffering the largest net loss of anyone on the list . [ 30 ] Overall , net gainers outnumbered net losers by 4:1 . [ 31 ] A record total of 1,426 people made the 2013 list , representing $ 5.4 trillion of assets . [ 32 ] Of those , 442 billionaires hailed from the United States . [ 30 ] The Asian-Pacific region had 386 billionaires and Europe 366 . The list also featured a record number of newcomers , 210 , representing 42 countries . 60 people from the 2012 list fell below a billion dollars of assets in 2013 , and eight others from the 2012 list died . The Asia-Pacific region had the most drop-offs , with 29 , followed by the United States with 16 . The 2013 list featured 138 women , of which 50 came from the United States . A majority of the list ( 961 individuals , 67 percent ) were entirely self-made ; 184 ( 13 percent ) inherited their wealth , and 281 ( 20 percent ) achieved their fortune through a combination of inheritance and business acumen . [ 32 ] Vietnam 's Phạm Nhật Vượng was the first person from that country to be included in this list .
The World's Billionaires is an annual ranking by documented net worth of the wealthiest billionaires in the world, compiled and published in March annually by the American business magazine Forbes. The list was first published in March 1987. The total net worth of each individual on the list is estimated and is cited in United States dollars, based on their documented assets and accounting for debt. Royalty and dictators whose wealth comes from their positions are excluded from these lists. This ranking is an index of the wealthiest documented individuals, excluding and ranking against those with wealth that is not able to be completely ascertained. In 2018, there was a record of 2,208 people on the list, that included 259 newcomers mostly from China and the U.S.; there were 63 people under 40 and it had a record number of 256 women. The average net worth of the list came in at US$4.1 billion, up US$350 million from 2017. Added together, the total net worth for 2018's billionaires was US$9.1 trillion, up from US$7.67 trillion in 2017. As of 2018[update], Microsoft founder Bill Gates had topped the list 18 of the past 24 years, while Amazon founder Jeff Bezos is ranked at the top for the first time and he became the first centibillionaire included in the ranking. In 2017, Mark Zuckerberg was the only person in the top 10 billionaires list who is under the age of 50, and the only one in the top 20 billionaires list who is under the age of 40. In 2017, 500 of the richest people in the world became richer by $1 trillion, according to a report by Bloomberg News. According to a 2017 Oxfam report, the top eight billionaires own as much combined wealth as the poorest half of the human race.
No Name Net worth ( USD ) Age Nationality Source ( s ) of wealth
1 Carlos Slim & family $ 73.0 billion 73 Mexico América Móvil , Grupo Carso
2 Bill Gates $ 67.0 billion 57 United States Microsoft
3 Amancio Ortega $ 57.0 billion 76 Spain Inditex Group
4 Warren Buffett $ 53.5 billion 82 United States Berkshire Hathaway
5 Larry Ellison $ 43.0 billion 68 United States Oracle Corporation
6 Charles Koch $ 34.0 billion 77 United States Koch Industries
6 David Koch $ 34.0 billion 72 United States Koch Industries
8 Li Ka-shing $ 31.0 billion 84 Hong Kong Cheung Kong Holdings
9 Liliane Bettencourt & family $ 30.0 billion 90 France L'Oréal
10 Bernard Arnault $ 29.0 billion 63 France LVMH