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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $84,842,739 | $92,534,867 | $98,142,451 | $114,504,239 | $85,862,372 | $138,202,665 | $156,005,941 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $4,283,587 | $6,053,770 | $6,541,007 | $7,852,081 | $3,776,964 | $5,522,506 | $5,354,803 |
| Total | $89,126,326 | $98,588,637 | $104,683,458 | $122,356,320 | $89,639,336 | $143,725,171 | $161,360,744 |
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