Figure.

Mean percentage of weeks foods were on sale, by food category and aggregate food category, in an urban supermarket, Philadelphia, Pennsylvania, April through August 2010 and December 2010 through October 2012.

Food Category	Mean Percentage of Weeks on Sale (95% Confidence Interval)
Low-calorie foods	19.2 (15.4–25.1)
Fruit	16.5 (12.7–20.7)
Vegetables	21.4 (14.9–31.9)
Low-fat dairy	19.0 (5.0–37.1)
High-calorie foods	25.7 (21.6–30.4)
Sweet snacks	15.3 (12.6–20.0)
Savory snacks	32.0 (21.8–48.3)
Sugar-sweetened beverages	35.0 (26.6–41.9)
Grain-based snacks	22.5 (15.5–29.6)