Commodity20072008200920102011
Zinc, not alloyed, unwrought, cont. by wt. 99.99%/more of zinc$1,634 $250 $6,404
Zinc, not alloyed, unwrought, cont. by wt. <99.99% of zinc $78   
Zinc alloys, unwrought   $374 
Total$1,634$78$250$374$6,404