Global household wealth will grow by nearly 50 per cent in the next five years to US$330 trillion ($403 trillion), with the Chinese overtaking the Japanese as the world's second-richest people, Credit Suisse said in a report on Wednesday.
The number of millionaires could jump by more than 60 per cent to 46 million in 2017, with twice as many Chinese in that category than in 2012, while the United States would still account for more than a third of the world's most wealthy.
"If the recent growth trends continue, China could reach the real wealth level that the USA enjoyed in 1992, which would represent a jump of 22 'USA years' in just five," Credit Suisse said in its Global Wealth Report 2012.
Global household wealth - measured as households' financial and non-financial assets minus debt - rose by about 1 per cent on constant exchange rates over the past year, the smallest increase since the 2008 Lehman collapse.
Just 0.6 per cent of the world's people have assets worth more than a million dollars apiece but collectively they account for nearly 40 per cent of global wealth. Meanwhile, nearly 70 per cent of the population has net assets below US$10,000, or, less than 3.3 per cent of global wealth in total.
Australians have the world's highest median worth, of US$193,653 per adult, Bloomberg reported from the survey.