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, 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.
who is a richest person in the world
Amazon founder Jeff Bezos