The fiscal year for Pine Valley Skiing Ltd., the owner of a downhill skiing facility, ends on June 30. The company began the recently completed fiscal year with its summer maintenance crew of 7. During the fiscal year, employees were hired or laid off on various dates as shown.
Date Employee changes
September 1………………… 6 hired
November 1………………… 18 hired
December 1………………… 23 hired
March 1……………………… 11 laid off
April 1………………… 20 laid off
May 1…………………………… 16 laid off
What was the average number of employees working for Pine Valley during the fiscal year? (Assume that each month has the same length.)