1. Construct Monthly dummy variables for 11/12 months
2. Regress the Alfalfa prices against the 11 monthly dummy variables
3. If the price of Alfalfa was $180 in May, predict Nov and Dec price for 2013.

Alfalfa

Price

Jan-06 114.00 Jan-07 142.00 Jan-08 180.00 Jan-09 133.00 Jan-10 121.00

Feb-06 112.00 Feb-07 137.00 Feb-08 172.00 Feb-09 122.00 Feb-10 119.00

Mar-06 111.00 Mar-07 136.00 Mar-08 177.00 Mar-09 116.00 Mar-10 117.00

Apr-06 109.00 Apr-07 135.00 Apr-08 179.00 Apr-09 109.00 Apr-10 116.00

May-06 111.00 May-07 135.00 May-08 175.00 May-09 109.00 May-10 117.00

Jun-06 113.00 Jun-07 136.00 Jun-08 171.00 Jun-09 109.00 Jun-10 118.00

Jul-06 110.00 Jul-07 136.00 Jul-08 165.00 Jul-09 109.00 Jul-10 117.00

Aug-06 111.00 Aug-07 135.00 Aug-08 152.00 Aug-09 109.00 Aug-10 121.00

Sep-06 112.00 Sep-07 136.00 Sep-08 148.00 Sep-09 111.00 Sep-10 121.00

Oct-06 115.00 Oct-07 138.00 Oct-08 141.00 Oct-09 110.00 Oct-10 127.00

Nov-06 121.00 Nov-07 144.00 Nov-08 138.00 Nov-09 113.00 Nov-10 136.00

Dec-06 127.00 Dec-07 161.00 Dec-08 132.00 Dec-09 112.00 Dec-10 155.00