But where do they choose to move to?
Net inflow of millionaires 2000 to 2014
UK - 125,000
US - 52,000
Singapore - 46,000
Australia - 35,000
Hong Kong - 29.000
UAE - 18,000
Source; Time Magazine
Some of these locations will remain popular due to their favourable tax legislation.
Others will become more sought after due to them being desirable places to live.
I expect to see Australia moving up this list, particularly becoming a country of choice for with the wealthy of Asia.
We even have a visa system which encourages this.
Where would you move to, if you could live anywhere?