20182017201620152014
Same-store sales growth1.5%2.8%3.8%6.4%4.9%
Front-end same-store sales growth-2.4%-1.0%-0.3%1.5%2.0%
Pharmacy same-store sales growth3.4%4.7%6.0%9.3%6.8%
Front-end same-store traffic growthN/AN/AN/AN/AN/A
Front-end same-store basket size growthN/AN/AN/AN/AN/A

Notes:Same-store sales, referred to by the company as "comparable drugstore sales," includes sales from stores open at least 12 months, excluding remodeled, relocated and acquired stores