TTM20152014201320122011
Avg sales per store (M)$1,816$1,819$1,884$1,634$1,674$1,704
Avg sales per store growth-1.9%-3.4%15.3%-2.4%-1.8%0.6%
Avg sales per square foot$224$225$235$223$229$234
Avg sales per square foot growth-2.3%-4.4%5.5%-2.7%-2.0%0.8%

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