Bill Gates has been declared the richest man in the world for the 16th time.
The man who found Microsoft beat Mexican businessman Carlos Slim to the top spot.
Mr Gates’ net worth rose by just over $3bn ($4.5bn NZ) in the year to 13 February, to $79bn.
The big news this year was that the number of billionaires rose to 1,826, an increase of 181 in the past 12 months.
Mr Gates has now been top of the list for 16 of the last 21 years.
The youngest billionaires were Evan Spiegel, 24, and Bobby Murphy, 25, who co-founded mobile messaging app Snapchat, and are each worth $US1.5 billion.
Facebook’s Mark Zuckerberg joined the top 20 and basketball star Michael Jordan made the list for the first time.