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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron oxides & hydroxides | $28,897,243 | $28,400,439 | $37,013,058 | $34,692,645 | $29,204,864 | $36,488,655 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $524,790 | $440,233 | $621,717 | $332,425 | $468,025 | $400,253 |
| Total | $29,422,033 | $28,840,672 | $37,634,775 | $35,025,070 | $29,672,889 | $36,888,908 |
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