NEW YORK (CBS) -- Forbes magazine has disclosed its annual list of billionaires. The magazine highlights the more than 2,200 billionaires around the world who hold a combined net worth of $9.1 trillion.
At No. 5 is Facebook's Mark Zuckerberg, with an estimated $71 billion.
No. 4 is chairman and CEO of luxury goods company LVMH Bernard Arnault and his family, with $72 billion.
American business magnate and investor Warren Buffett sits in the third spot with $84 billion.
Microsoft co-founder Bill Gates dropped one spot from last year to No. 2, with $90 billion.
At the top of the list for the first time is Amazon founder and CEO Jeff Bezos. He's the first centibillionaire on the list with $112 billion.
Forbes assistant managing editor Luisa Kroll told "CBS This Morning" that Bezos had the "biggest one-year gain" since the magazine began tracking world billionaires.
"He was up over 39 billion dollars in 12 months," Kroll said.
Sixty-seven percent of the 2018 list are self-made billionaires, and a record 255 women are included in this year's rankings.
"There are 72 self-made (women), which is just really exciting because that's always been a huge lag," Kroll said.
Chinese entrepreneur Zhou Qunfei is the richest self-made woman on the list with a net worth of $7.8 billion.
"Her mom reportedly died when she was younger. She ended up working in a factory at age 16. She makes the glass covers for a lot of our smartphones," Kroll said.
Forbes' 2018 top 15 billionaires
1, Jeff Bezos, $112 billion
2, Bill Gates, $90 billion
3, Warren Buffett, $84 billion
4, Bernard Arnault and family, $72 billion
5, Mark Zuckerberg, $71 billion
6, Amancio Ortega, $70 billion
7, Carlos Slim Helu and family, $67.1 billion
T8, Charles Koch, $60 billion
T8, David Koch, $60 billion
10, Larry Ellison, $58.5 billion
11, Michael Bloomberg, $50 billion
12, Larry Page, $48.8 billion
13, Sergey Brin, $47.5 billion
14, Jim Walton, $46.4 billion
15, S. Robson Walton, $46.2 billion