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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Zinc dust | $10,812,721 | $35,045,656 | $43,421,711 | $30,435,186 | $18,330,283 | $35,371,630 | $48,214,069 |
| Zinc powders & flakes | $36,384,550 | $74,070,763 | $99,376,739 | $52,623,100 | $27,686,332 | $59,409,112 | $67,348,720 |
| Total | $47,197,271 | $109,116,419 | $142,798,450 | $83,058,286 | $46,016,615 | $94,780,742 | $115,562,789 |
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