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QUESTION #4 Month Year 1 Year 2 Jan 82 82 82 82 Feb 70 75 84 89 Mar 85 90 82 77 Apr 81 90 90 88 May 80 90 123 119 Jun 89 120 99 99 Jul 100 99 78 89 Aug 89 103 93 100 Sep 86 92 120 86 Oct 80 84 78 84 Nov 75 83 99 80 Dec 78 82 100 82 Please fill out the empty cells in the table above. Year 3 Year 4 Average Average Seasonal Period Monthly Monthly Demand Index Demand