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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Zinc dust | $1,483,285 | $2,801,325 | $3,192,351 | $2,554,205 | $2,084,258 | $6,943,687 | $5,788,229 |
| Zinc powders & flakes | $839,406 | $3,388,831 | $7,025,522 | $3,738,674 | $2,451,823 | $3,299,437 | $2,962,369 |
| Total | $2,322,691 | $6,190,156 | $10,217,873 | $6,292,879 | $4,536,081 | $10,243,124 | $8,750,598 |
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