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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $50,895,294 | $44,858,977 | $43,517,874 | $43,488,716 | $32,257,665 | $49,942,609 | $59,381,868 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $10,511 | | $38,656 | $5,854 | $12,307 | $19,256 | $6,618 |
| Total | $50,905,805 | $44,858,977 | $43,556,530 | $43,494,570 | $32,269,972 | $49,961,865 | $59,388,486 |
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