How much did ground coffee cost in 1980?

January 1980 $3.21 per pound February 1980 $3.26 per pound March 1980 $3.25 per pound April 1980 $3.21 per pound May 1980 $3.20 per pound June 1980 $3.18 per pound July 1980 $3.23 per pound August 1980 $3.23 per pound September 1980 $3.16 per pound October 1980 $3.05 per pound November 1980 $2.91 per pound December 1980 $2.82 per pound