TTM20162015201420132012
Avg sales per store (M)$1,826$1,837$1,819$1,884$1,634$1,674
Avg sales per store growth0.5%1.0%-3.4%15.3%-2.4%-1.8%
Avg sales per square foot$227$229$226$235$223$229
Avg sales per square foot growth0.4%1.4%-4.0%5.5%-2.7%-2.0%

Notes:Due to acquisition of General Parts International, Inc. (GPI), figures for 2014 and thereafter exclude wholesale revenues which are estimated by eMarketer