The Dating Game: When Will China Surpass the U.S. in GDP?

From The Economist:

 AMERICA'S GDP is still roughly twice as big as China's (using market exchange rates). To predict when the gap might be closed, The Economist has updated its interactive chart below with the latest GDP numbers. This allows you to plug in your own assumptions about real GDP growth in China and America, inflation rates and the yuan's exchange rate against the dollar. Over the past ten years, real GDP growth averaged 10.5% a year in China and 1.6% in America; inflation (as measured by the GDP deflator) averaged 4.3% and 2.2% respectively....MORE