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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $20,433,403 | $22,969,216 | $26,525,539 | $28,532,043 | $22,523,873 | $24,609,054 | $24,177,099 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $68,068 | $107,645 | $54,845 | $12,195 | $34,402 | $254,263 | $256,984 |
| Total | $20,501,471 | $23,076,861 | $26,580,384 | $28,544,238 | $22,558,275 | $24,863,317 | $24,434,083 |
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