How much did ice cream cost in 1980?

January 1980 $1.76 per half gallon February 1980 $1.78 per half gallon March 1980 $1.72 per half gallon April 1980 $1.77 per half gallon May 1980 $1.82 per half gallon June 1980 $1.83 per half gallon July 1980 $1.83 per half gallon August 1980 $1.87 per half gallon September 1980 $1.83 per half gallon October 1980 $1.88 per half gallon November 1980 $1.88 per half gallon December 1980 $1.92 per half gallon