HOW THE NUMBERS ARE PRESENTED

THE DATA ON THESE PAGES were compiled from category sales figures at supermarkets provided by SymphonyIRI Group, Chicago, for the 52-week period that ended June 12, 2011, with data on some perishables categories provided by The Perishables Group, West Dundee, Ill. The data compare the dollar sales performance of the top-selling supermarket categories to those categories' performance in drug stores

THE DATA ON THESE PAGES were compiled from category sales figures at supermarkets provided by SymphonyIRI Group, Chicago, for the 52-week period that ended June 12, 2011, with data on some perishables categories provided by The Perishables Group, West Dundee, Ill.

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