What revenue forecasting approach do you think should be used? Then perform calculations. Show me the step and results.

There are the collection from a state liquor excise tax for a number of years. There have been no change in the structure or administration of the tax in that period of time. Collections are in thousands of dollars and fiscal years end on June 30. Your job is to forecast collections for fiscal years 2015 and 2016.

FY 2006- 144,900

FY 2007- 153,831

FY 2008- 162,083

FY 2009- 170,469

FY 2010- 193,181

FY 2011- 195,179

FY 2012- 212,501

FY 2013- 223,036

FY 2014- 239,494