20172016201520142013
Same-store sales growth1.3%-0.5%2.1%1.3%-0.4%
Same-store transaction growth1.6%-0.8%1.3%-0.2%-2.7%
Same-store avg transaction value growth-0.3%0.3%0.8%1.5%2.3%
Same-store units per transaction growthN/A-2.6%-2.4%-1.6%0.7%
Same-store selling price per unit growthN/A2.9%3.3%3.2%1.6%

Notes:Same-store sales, referred to by the company as "comparable sales," includes sales from stores for more than 13 months and ecommerce sales