Stacks of Vietnamese dong are seen at a Bank for Foreign Tra [Getty Images]

CHINA - DECEMBER 21: Stacks of Vietnamese dong are seen at a Bank for Foreign Trade of Vietnam, known as Vietcombank, in Hanoi, Vietnam, on Friday, Dec. 21, 2007. Vietnam today began announcing the results of an auction for shares in the Bank for Foreign Trade of Vietnam, the first of the country's state-owned lenders to allow overseas investment. (Photo by Jerome Ming/Bloomberg via Getty Images)

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