How much did milk cost in 2011?

January 2011 $3.30 per gallon February 2011 $3.36 per gallon March 2011 $3.50 per gallon April 2011 $3.60 per gallon May 2011 $3.65 per gallon June 2011 $3.62 per gallon July 2011 $3.65 per gallon August 2011 $3.71 per gallon September 2011 $3.72 per gallon October 2011 $3.62 per gallon November 2011 $3.56 per gallon December 2011 $3.57 per gallon