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FILE - In this Thursday, Dec. 20, 2012, file photo, a sign hangs in North Andover, Mass.  U.S. sales of previously occupied homes dipped in December from November, in part because of a limited supply of available homes. But for all of 2012, sales rose to their highest level in five years, (AP Photo/Elise Amendola, File) Home for sale in Andover, Mass in Dec. 2012. (Elise Amendola/AP), Elise Amendola