According to a report released by the U.S. Government called “2012 Census of Retail Trade,” supermarket sales outpaced overall retail sales between 2007 and 2012. Supermarket sales grew by 15.2% during the period, which is nearly twice as much as all other retail, which grew by 7.8%.
And with sales growth of 25.1% over the five-year period, warehouse clubs and supercenters outperformed supermarkets by a longshot.