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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Zinc dust | $4,868,131 | $6,599,445 | $10,639,767 | $5,939,168 | $5,139,732 | $4,464,787 | $9,172,103 |
| Zinc powders & flakes | $2,795,789 | $3,392,041 | $5,861,277 | $7,269,923 | $25,308,470 | $27,243,192 | $14,388,662 |
| Total | $7,663,920 | $9,991,486 | $16,501,044 | $13,209,091 | $30,448,202 | $31,707,979 | $23,560,765 |
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