The following partial information is taken from the comparative balance sheet of Levi Corporation:

Shareholders equity	12/31/2016	12/31/2015
Common stock, $5 par value; 23 million shares authorized; 18 million shares issued and 12 million shares outstanding at 12/31/2016; and ____million shares issued and ____shares outstanding at 12/31/2015.	$90 million	$60 million
Additional paid-in capital on common stock	523 million	398 million
Retained earnings	200 million	160 million
Treasury common stock, at cost, 6 million shares at 12/31/2016 and 4 million shares at 12/31/2015	(73 million)	(39 million)
Total shareholders equity	$740 million	$579 million

What was the average price of the additional treasury shares purchased by Levi during 2016?