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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $22,524,796 | $24,800,618 | $31,867,911 | $32,623,053 | $28,200,279 | $26,077,419 | $24,655,621 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $1,221,306 | $616,465 | $593,879 | $785,203 | $986,278 | $862,507 | $1,274,060 |
| Total | $23,746,102 | $25,417,083 | $32,461,790 | $33,408,256 | $29,186,557 | $26,939,926 | $25,929,681 |
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