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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $9,936,812 | $13,825,895 | $17,306,478 | $15,581,254 | $16,913,134 | $23,960,136 | $42,467,923 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | | $197 | $3,108 | $10,929 | $885 | $358 | $930 |
| Total | $9,936,812 | $13,826,092 | $17,309,586 | $15,592,183 | $16,914,019 | $23,960,494 | $42,468,853 |
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