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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $4,452,065 | $6,359,970 | $6,499,808 | $7,796,035 | $4,011,077 | $6,343,900 | $5,740,708 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $46,162 | $133,601 | $90,723 | $108,028 | $20,274 | $31,311 | $49,856 |
| Total | $4,498,227 | $6,493,571 | $6,590,531 | $7,904,063 | $4,031,351 | $6,375,211 | $5,790,564 |
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