How much did soft margarine cost in 1984?

January 1984 $0.97 per pound February 1984 $0.98 per pound March 1984 $0.99 per pound April 1984 $0.99 per pound May 1984 $1.00 per pound June 1984 $1.01 per pound July 1984 $1.02 per pound August 1984 $1.03 per pound September 1984 $1.04 per pound October 1984 $1.04 per pound November 1984 $1.04 per pound December 1984 $1.04 per pound