There are 18.5 million of millionnaires in the world. They own 47% of the world's wealth. It's a total of $78.96 trillion (over the $168 trillion of bonds, shares, cash and deposits).
Most of the millionnaires are located in the USA (8 million), then China (2 million).
In term of proportion, they are the most living in Liechtenstein and Switzerland.
The US millionnaires own $60.4 trillion (76% of the millionnaires wealth).
Their wealth has climbed of "only" 5,2% in 2015 comparing to the 7% of 2014. The accumulated wealth in offshore countries is estimated to $10 trillion.
More : Global growth uncertain but rich getting much richer, Boston Consulting says | afr.com