TTM20162015201420132012
Avg sales per store (M)$6,612$6,610$6,543$6,379$6,144$5,506
Avg sales per store growth1.0%1.0%2.6%3.8%11.6%6.4%
Avg sales per square foot$146$146$145$142$138$123
Avg sales per square foot growth0.7%0.6%2.1%3.3%11.5%6.7%

Notes:Calculated based on reported selling square footage and an eMarketer estimate that 80% of a typical store is used for selling space