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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $10,892,097 | $12,262,166 | $16,850,604 | $18,053,948 | $12,577,559 | $14,605,028 | $14,362,441 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $11,198 | $21,341 | $107,032 | $234,543 | $115,314 | $144,486 | $182,261 |
| Total | $10,903,295 | $12,283,507 | $16,957,636 | $18,288,491 | $12,692,873 | $14,749,514 | $14,544,702 |
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