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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
| Iron oxides & hydroxides | $1,901,568 | $4,148,440 | $4,056,698 | $3,542,486 | $2,547,786 | $4,486,920 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $19,899 | $17,589 | $17,847 | $223,984 | $186,968 | $122,021 |
| Total | $1,921,467 | $4,166,029 | $4,074,545 | $3,766,470 | $2,734,754 | $4,608,941 |
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