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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $3,943,318 | $4,666,405 | $6,368,269 | $8,715,460 | $12,177,498 | $8,863,435 | $5,484,709 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $20,750 | $19,154 | $18,775 | $33,758 | $39,692 | $17,095 | $17,741 |
| Total | $3,964,068 | $4,685,559 | $6,387,044 | $8,749,218 | $12,217,190 | $8,880,530 | $5,502,450 |
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