If you were using a time series analysis to forecast sales for your company for the next year, how would you use the following sets of sales figures?

c. In 2010, sales increased 21.2 percent. In 2011, sales increased 18.8 percent. New stores were opened in 2010 and 2011.

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a. 2003 $145,000 2008 $149,000 2004 $144,000 2009 $148,000 2005 $147,000 2010 $180,000 2006 $145,000 2011 $191,000 2007 $148,000 2012 $227,000 b. 2010 2011 2012 Jan. $12,000 $14,000 $16,000 Feb. $13,000 $14,000 $15,500 Mar. $12,000 $14,000 $17,000 Apr. $13,000 $15,000 $17,000 May $15,000 $17,000 $20,000 June $18,000 $18,000 $21,000 July $18,500 $18,000 $21,500 Aug. $18,500 $19,000 $22,000 Sep. $17,000 $18,000 $21,000 Oct. $16,000 $15,000 $19,000 Nov. $13,000 $14,000 $19,000 Dec. $14,000 $15,000 $18,000