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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $2,996,505 | $3,256,624 | $4,043,589 | $4,588,642 | $4,333,756 | $3,523,824 | $2,746,683 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $18,879 | $48,636 | $61,079 | $139,771 | $14,629 | $28,801 | $6,814 |
| Total | $3,015,384 | $3,305,260 | $4,104,668 | $4,728,413 | $4,348,385 | $3,552,625 | $2,753,497 |
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