Wal-Mart Stores is first place and Kroger is second on the National Retail Federation's annual list of the 20 largest companies, compiled using data from Kantar Retail. While Kroger's store count decreased 1% between 2011 and 2012, sales increased 6.6%. Also on the list are Target, Costco Wholesale, Walgreen, Safeway, Publix Super Markets, Ahold USA and Delhaize America.

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