20142013201220112010
Same-store sales growth0.1%0.4%1.9%5.1%1.9%
Identical-store sales growth-0.4%0.2%1.4%4.9%1.5%
Identical-store sales growth excluding gas-0.1%0.3%0.5%2.9%0.4%

Notes:Same-store sales, referred to by the company as "comparable sales," includes sales from stores open in both the current and prior-year period and replacement stores, and excludes gas; identical store sales excludes replacement stores