There are 1826 billionaires in the world and there are some countries that have hundreds of them.
However, while nations like China may house some of the world's richest people, with 400 billionaires, it doesn't actually have the highest number of billionaires in proportion to the population.
Approved Index, a UK-based business-networking group, crunched the numbers from Forbes' billionaire list for 2015 using this week's data and found that the most billionaire-dense nations across the world are pretty surprising.
15. Taiwan
Number of billionaires: 33
Population: 23,456,545
Population per one billionaires: 710,804
Taiwan's billionaires have a combined net worth of $117.1 billion ($75.1 billion) after a boom in its financial services sector and strong trade links with China. Daniel and Richard Tsai are the richest men in the country, with a net worth of $10 billion (£6.4 billion), after assuming leadership of financial services giant Fubon Financial.
14. Kuwait
Number of billionaires: 5
Population: 3,268,431
Population per one billionaires: 653,686
Kuwait is the fifth richest country in the world, as measured by GDP per capita, with $70,914 per person. This is mainly because the geographically small country has a relatively open economy with crude oil reserves of about 102 billion barrels, according to Forbes.
13. United States
Number of billionaires: 536
Population: 321,369,000
Population per one billionaires: 599,569
The U.S. houses the largest amount of billionaires in the world and continues to dominate the rankings for the world's richest people. You have Microsoft founder Bill Gates who tops the overall wealthiest people in the world list with a net worth of $79.4 billion (£50.9 billion) and legendary investor Warren Buffett with $67.3 billion (£43.2 billion) at third. It ranks lower in the list though when looking at the number of billionaires per proportion of the population.
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