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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $35,036,238 | $35,526,980 | $42,593,575 | $40,936,502 | $29,734,199 | $35,497,586 | $33,412,303 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $344,664 | $244,832 | $273,133 | $145,876 | $69,398 | $261,119 | $303,331 |
| Total | $35,380,902 | $35,771,812 | $42,866,708 | $41,082,378 | $29,803,597 | $35,758,705 | $33,715,634 |
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