How much did frankfurters cost in 1980?

January 1980 $1.68 per pound February 1980 $1.71 per pound March 1980 $1.72 per pound April 1980 $1.69 per pound May 1980 $1.64 per pound June 1980 $1.62 per pound July 1980 $1.60 per pound August 1980 $1.71 per pound September 1980 $1.79 per pound October 1980 $1.83 per pound November 1980 $1.84 per pound December 1980 $1.84 per pound