US Real GDP Chart
Current US Real GDP: 13.75 trillion
US Real GDP for Mar 2013
Mean: 6.28 trillion
Median: 5.45 trillion
Min: 0.72 trillion (Dec 1933)
Max: 13.75 trillion (Mar 2013)

US gross domestic product in trillions of chained 2005 dollars (inflation-adjusted).

Source: US Bureau of Economic Analysis