Unit: dollars/ ton
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    LME Out Price   LME Spot Price/b/c in 3-month
Copper  6380.0/6381.0           3       b
Aluminium  2059.0/2060.0         -33       c
Lead  1935.0/1940.0         -18       c
Zinc  1908.0/1910.0       -26.5       c
Tin 15145.0/15150.0        450       b
Nickel 20600.0/20605.0        -70       c
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c for contango£¬b for backwardation