Federal Reserve Board Chairwoman Yellen Gives Semiannual Monetary Policy To Senate Committee [Getty Images]

WASHINGTON, DC - FEBRUARY 24: Federal Reserve Board Chair Janet Yellen testifies during a hearing before the Senate Banking, Housing and Urban Affairs Committee February 24, 2015 on Capitol Hill in Washington, DC. Yellen gave the Federal Reserve semiannual monetary policy report to the Congress. (Photo by Alex Wong/Getty Images)

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