5. United Kingdom
Britain is the world's fifth largest economy. Its GDP is at $2.728 trillion.
In purchasing power parity terms, the United Kingdom's GDP stands at $2.082 trillion making it the seventh largest in the world.
Britain is a rich nation. Its per capita income is at an impressive $42,740. That would rank it in the 19th spot.
Image: A couple enjoys a sunny day at the Trafalgar Square in London, England. | Photograph: Dan Kitwood/Getty Images
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