How much did grapefruit cost in 1980?

January 1980 $0.33 per pound February 1980 $0.31 per pound March 1980 $0.30 per pound April 1980 $0.31 per pound May 1980 $0.31 per pound June 1980 $0.34 per pound July 1980 $0.38 per pound August 1980 $0.42 per pound September 1980 $0.44 per pound October 1980 $0.44 per pound November 1980 $0.35 per pound December 1980 $0.33 per pound