Passage

Directions : Read the following information and answer the given question. Mr. Joey owns a wholesale shop at which he deals with pairs of shoes, where he buys and sells pairs of shoes every day. The first table below presents his average selling price per pair of shoes and his average cost price per pair of shoes for eight years, from 2009 to 2016. The second table provides the profit (in $ '000) that he earned in each year. Year 2009 2010 2011 2012 2013 2014 2015 2016 Average Selling Price per Pair (in $) 47 43 49 43 47 42.50 48 51 Average Cost Price per Pair (in $) 42.50 41.50 47.50 40.50 43.50 41 44.50 47.50 year 2009 2010 2011 2012 2013 2014 2015 2016 Profit ($ '000) 756 234 285 410 616 270 658 616

What is the average number of pairs of shoes that Mr. Joey sold per year during the given period?