First Day Of Post-Christmas Retail Sales As Consumer Confidence Falls To Its Lowest Level Since July [Getty Images]

Shoppers queue outside Selfridges Plc department store ahead of the Boxing Day sales in London, U.K., on Monday, Dec. 26, 2016. Consumer confidence fell to its lowest level since July, the month after the Brexit vote, according to an index compiled by YouGov and the Centre for Economics and Business Research published Friday. Photographer: Chris Ratcliffe/Bloomberg via Getty Images

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