How much did sugar cost in 1980?

January 1980 $0.27 per pound February 1980 $0.30 per pound March 1980 $0.36 per pound April 1980 $0.37 per pound May 1980 $0.38 per pound June 1980 $0.43 per pound July 1980 $0.47 per pound August 1980 $0.46 per pound September 1980 $0.48 per pound October 1980 $0.50 per pound November 1980 $0.55 per pound December 1980 $0.57 per pound