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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $17,320,894 | $16,973,793 | $17,207,879 | $20,847,072 | $12,051,347 | $11,574,363 | $10,367,213 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $266,459 | $64,465 | $299,659 | $1,189,621 | $933,231 | $154,901 | $304,370 |
| Total | $17,587,353 | $17,038,258 | $17,507,538 | $22,036,693 | $12,984,578 | $11,729,264 | $10,671,583 |
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