 In the 29th annual "Forbes" list of global billionaires, a record 1,826 billionaires were named with an aggregated net worth of $7.1 trillion compared to $6.4 trillion in the previous year.46 of the billionaires in this list were under the age of 40.A record number of 290 people joined the list for the first time, of whom 25 percent hailed from China, which produced a world-leading 71 newcomers.