World Real GDP Chart
Current World Real GDP: 74.63 Trillion USD
World Real GDP for Dec 2015
Mean: 37.38 Trillion USD
Median: 34.49 Trillion USD
Min: 11.18 Trillion USD (Dec 1960)
Max: 74.63 Trillion USD (Dec 2015)

World Gross Domestic Product in US constant 2000 dollars (inflation-adjusted).

Source: World Bank > World > World Real GDP