日付	電気銅(円/kg)	銅スクラップ(円/kg)
R6/6/12	1,580	1,434
R6/6/11	1,610	1,456
R6/6/10	1,610	1,456
R6/6/7	1,570	1,422
R6/6/6	1,570	1,422
R6/6/5	1,620	1,462
R6/6/4	1,620	1,462
R6/6/3	1,690	1,512
R6/5/31	1,690	1,512
R6/5/30	1,690	1,512