 This map has the Robinson projection divided into 18,620 squares,
showing which ones produce more than US$100 billion in GDP,
according to Brookings in 2012.
 It should be noted that because
the Robinson projection is not equalarea,
the squares are not equal in size. The area of a square varies from
around 27,500 sq. km. near Jakarta to 30,000 sq. km. near St. Petersburg.
 The area in orange consists of 197 squares. In total they
generated an estimated $32 trillion in 2012, 45% of the world's GDP.
 Many squares' GDP far exceeded $100 billion. The largest of these were around Tokyo and New York, both of which exceeded $1 trillion.
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