Supermarket industry sales growth in 2012 did not keep pace with inflation, according to the Food Retailing Financial and Business Review 2013, released last week by Food Marketing Institute. It found that same-store sales increases in the industry averaged 1.6% in 2012, excluding fuel, and noted that 72.3% of companies posted sales gains below the estimated 2.6% rate of food-at-home inflation. The report was based on data from 66 food retailers compiled by 210 Analytics.