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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $588,903 | $653,809 | $923,968 | $893,671 | $831,601 | $653,390 | $612,127 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $95,469 | $62,591 | $71,842 | $62,575 | $43,358 | $4,477 | $2,077 |
| Total | $684,372 | $716,400 | $995,810 | $956,246 | $874,959 | $657,867 | $614,204 |
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