Unit: dollars/ ton
            ---------------------------------------------------------- 
            LME Out Price   LME Spot Price/b/c in 3-month
            Copper  6150.0/6155.0     -8     c 
            Zinc 1900.0/1905.0     -16     c 
            Lead  1899.0/1900.0     -26     c 
            Aluminium 2020.0/2023.0     -28.5     c 
            Nickel 19620.0/19625.0     -65     c 
            Tin  14750.0/14800.0     225     b
            ---------------------------------------------------------- 
           

c for contango£¬b for backwardation