Whiskey Distillery: On a tour of a whiskey distillery, where they make and age a popular 12 year old single-malt, you get to see the distilling and aging facilities. You learn that the whiskey is aged in custom 180 liter oak barrels in a room that holds an average of 300,000 barrels. During the 12 year aging process, whiskey loses 23% of its volume due to evaporationknown in the industry as "Angel's Share." On average, how many 0.7 liter bottles of this whiskey can the distillery ship per year