20162015201420132012
Same-store sales growth-4.2%10.3%26.2%40.1%39.2%
Constant currency same-store sales growth-0.9%11.9%N/AN/AN/A
North America same-store sales growthN/A6.9%22.5%39.6%39.8%
Europe same-store sales growthN/A25.1%60.0%51.3%21.8%
Japan same-store sales growthN/A33.9%29.0%14.7%35.1%

Notes:Same-store sales, referred to by the company as "comparable store sales," includes sales from stores open for one full year after the end of the first month of its operations