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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Zinc dust | $1,142,518 | $3,999,529 | $4,700,692 | $3,191,870 | $2,018,435 | $1,950,431 | $3,029,686 |
| Zinc powders & flakes | $37,324 | $160,468 | $267,936 | $52,231 | $94,922 | $252,775 | $86,379 |
| Total | $1,179,842 | $4,159,997 | $4,968,628 | $3,244,101 | $2,113,357 | $2,203,206 | $3,116,065 |
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