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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | | $3,721 | $49,426 | $66,797 | $49,465 | $74,331 | $75,587 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $711 | $11,000 | | | | | $2,300 |
| Total | $711 | $14,721 | $49,426 | $66,797 | $49,465 | $74,331 | $77,887 |
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