How much did ground beef cost in 1990?

January 1990 $1.56 per pound February 1990 $1.57 per pound March 1990 $1.57 per pound April 1990 $1.59 per pound May 1990 $1.58 per pound June 1990 $1.59 per pound July 1990 $1.58 per pound August 1990 $1.58 per pound September 1990 $1.59 per pound October 1990 $1.58 per pound November 1990 $1.62 per pound December 1990 $1.63 per pound