here are the stats for the last 4 seasons. have the total then the average at (Mon to Thur) (Fri & Sat) and Sun & holidays) games (# 0f games/ average)
(season) (total) (M to T) (F & S) (S & H)
2011/12 148661 12/3800 18/4529 6/3587
2012/13 152839 12/3993 19/4449 5/4080
2013/14 142408 15/3713 19/4202 2/3458
2014/15 155412 9/3875 21/4484 6/4397
One considers game # 8 the Ethan Bear effect, game # 23 the clock sell out and the Family Day game (# 31) the year looks average
Just an interesting comparison