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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron oxides & hydroxides | $6,817,041 | $8,376,757 | $9,378,950 | $12,331,756 | $11,006,000 | $15,400,762 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $1,392,144 | $1,249,530 | $1,581,414 | $1,340,127 | $749,110 | $371,905 |
| Total | $8,209,185 | $9,626,287 | $10,960,364 | $13,671,883 | $11,755,110 | $15,772,667 |
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