In 2017, most billionaires were self-made. The total net worth of the ten richest billionaires worldwide was estimated to be at over 743 billion U.S. dollars in 2019. Jeff Bezos, the richest man in the world, had a fortune of 131 billion dollars in that year. Second on the list was Bill Gates, founder of Microsoft. Gates' net worth amounted to 96.5 billion U.S. dollars in 2019. American business magnate and investor, Warren Buffett, worth about 82.5 billion dollars, ranked third.
When taking a closer look at the demographics of billionaires globally, about 87 percent were men in 2013. The world region with the highest female billionaire share was Europe, at 17 percent. In 2015, Angola was the only country with a 100 percent female billionaire population. According to 2015 data, over 85 percent of billionaires were married, and only 4 percent of billionaires stated their relationship status was single. When it comes to the attained education level of billionaires, more than 70 percent had a Bachelor’s degree and about 22 percent had earned a Master’s degree in 2015.