Given the table of the past sales of the total industry of new vehicles in the last 21 months, forecast the Total industry volume of new vehicles sold in 2013 for the following month: October, November, and December

Jan- 2012 - 40,948, Feb -2012 - 44,013, Mar - 2012 - 53,583, April - 2012 - 47,774, May - 2012 - 58,301, June - 2012 - 56,650, July - 2012 - 59,459, Aug - 2012 - 51,818, Sept - 2012 - 45,925, Oct - 2012 - 55,447, Nov - 2012 - 53,365, Dec -2012 - 60,470, Jan - 2013 - 55,066. Feb - 2013 - 45,046, Mar - 2013 - 57,622, April - 2013 - 52,489, May - 2013 - 49,634, June - 2013 - 53,631, July - 2013 68,431, Aug - 2013 - 51,106, Sept - 2013 54,945