Commodity2005200620072008200920102011
Zinc waste & scrap$4,659,468$6,987,599$9,189,571$6,127,652$4,019,038$8,121,068$8,594,362
Total$4,659,468$6,987,599$9,189,571$6,127,652$4,019,038$8,121,068$8,594,362