Unit: dollars/ ton 
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                    LME Out Price   LME Spot Price/b/c in 3-month 
Copper 8165.0/8180.0 240 b 
Lead 1964.0/1970.0 -2 c 
Zinc 1830.0/1845.0 -17.5 c  
Aluminium 3120.0/3130.0 -49 c 
Nickel 20700.0/20775.0 -155 c 
Tin 23250.0/23550.0 130 b
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c for contango£¬b for backwardation