The World's Billionaires

Columns: No | Name | Net worth ( USD ) | Age | Nationality | Source ( s ) of wealth
1 | Bill Gates | $ 52.8 billion | 46 | United States | Microsoft | 2 | Warren Buffett | $ 35.0 billion | 71 | United States | Berkshire Hathaway | 3 | Karl and Theo Albrecht | $ 26.8 billion | 82 | Germany | Aldi Süd | 4 | Paul Allen | $ 25.2 billion | 49 | United States | Microsoft | 5 | Larry Ellison | $ 23.5 billion | 57 | United States | Oracle Corporation | 6 | Jim Walton * | $ 20.8 billion | 54 | United States | Wal-Mart | 7 | John Walton * | $ 20.7 billion | 56 | United States | Wal-Mart | 8 | Alice Walton * | $ 20.5 billion | 53 | United States | Wal-Mart | 8 | S. Robson Walton * | $ 20.5 billion | 58 | United States | Wal-Mart | 8 | Helen Walton * | $ 20.5 billion | 82 | United States | Wal-Mart

Example questions:
In 2018 the Billionaire Lawrence Joseph Ellison 's fortune was increased from $ 54.5 billion to what ? | What year did Billionaire Helen Robson Walton die ? | What is the Billionaire Warren Edward Buffett 's net worth as of December 2019 ? | What year did the 2002 Billionaire Gates co-found Microsoft with childhood friend Paul Allen ?

Answers:
$ 69.1 billion | 2007 | $ 88.9 Billion | 1975