Several of the world’s richest people saw their wealth balloon by billions last year, but none more than Amazon CEO Jeff Bezos.

Bezos’s net worth grew by $US39.2 billion ($50 billion) in 2017 – “the biggest single-year increase on the Billionaires List this century.”

That’s according to Forbes’ 2017 and 2018 richest people in the world lists, which can be used to calculate the daily increase in net worth of the richest people in the world.

We simply found the difference between their 2017 and 2018 net worths – published by Forbes in March of each year – and divided that figure by 365 to represent the number of days in a year.

To be clear, these billionaires didn’t earn the same amount of money every day in 2017, considering a great deal of their net worth comes from the value of stocks, which can fluctuate wildly.

For the purposes of this calculation, every day is counted the same, whether it was a banner day or even one where the billionaire lost millions. Note that figures are approximate because of rounding.

See how much the 14 richest billionaires made per day in the last calendar year, ranked from lowest to highest.

Pictures: Getty


14. Bloomberg’s Michael Bloomberg: $US6.8 million per day

2017 net worth: $US47.5 billion

2018 net worth: $US50 billion

Total increase: $US2.5 billion


13. Microsoft’s Bill Gates: $US11 million per day

2017 net worth: $US86 billion

2018 net worth: $US90 billion

Total increase: $US4 billion


12. Oracle’s Larry Ellison: $US17.3 million per day

2017 net worth: $US52.2 billion

2018 net worth: $US58.5 billion

Total increase: $US6.3 billion


11. Walmart’s Jim Walton: $US21.9 million per day

2017 net worth: $US38.4 billion

2018 net worth: $US46.4 billion

Total increase: $US8 billion


10. Google’s Larry Page: $US22.2 million per day

2017 net worth: $US40.7 billion

2018 net worth: $US48.8 billion

Total increase: $US8.1 billion


9. Microsoft’s Steve Ballmer: $US23 million per day

2017 net worth: $US30 billion

2018 net worth: $US38.4 billion

Total increase: $US8.4 billion


8. Berkshire Hathaway’s Warren Buffett: $US23 million per day

2017 net worth: $US75.6 billion

2018 net worth: $US84 billion

Total increase: $US8.4 billion


7. Alibaba’s Jack Ma: $US29.3 million per day

2017 net worth: $US28.3 billion

2018 net worth: $US39 billion

Total increase: $US10.7 billion


5. & 6. Koch Industries’ Charles and David Koch: $US32.1 million per day

2017 net worth: $US48.3 billion

2018 net worth: $US60 billion

Total increase: $US11.7 billion


4. Grupo Carso’s Carlos Slim: $US34.8 million per day

2017 net worth: $US54.4 billion

2018 net worth: $US67.1 billion

Total increase: $US12.7 billion


3. Facebook’s Mark Zuckerberg: $US41.1 million

2017 net worth: $US56 billion

2018 net worth: $US71 billion

Total increase: $US15 billion


2. LVMH’s Bernard Arnault: $US83.6 million per day

2017 net worth: $US41.5 billion

2018 net worth: $US72 billion

Total increase: $US30.5 billion


1. Amazon’s Jeff Bezos: $US107.4 million per day

2017 net worth: $US72.8 billion

2018 net worth: $US112 billion

Total increase: $US39.2 billion


This article first appeared on Business Insider Australia, Australia’s most popular business news website. Read the original article. Follow Business Insider on Facebook or Twitter.