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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $42,102,830 | $44,005,486 | $44,721,958 | $46,645,185 | $29,042,192 | $33,951,415 | $31,569,812 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $71,968 | $62,039 | $95,476 | $46,316 | $337,710 | $223,879 | $519,976 |
| Total | $42,174,798 | $44,067,525 | $44,817,434 | $46,691,501 | $29,379,902 | $34,175,294 | $32,089,788 |
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