Over the last twenty years, global wealth has tripled, with China topping the list and surpassing the United States as the world's wealthies

Over the last two decades, global wealth has tripled, with China leading the way and surpassing the United States as the world's wealthiest country.

That's one of the conclusions drawn from a recent analysis by McKinsey & Co.'s research department, which looked at the national financial sheets of ten countries accounting for more than 60% of global revenue.