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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $24,310,343 | $26,450,964 | $29,968,331 | $30,361,739 | $24,019,323 | $29,462,958 | $30,830,412 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $102,310 | $44,303 | $79,424 | $1,299,725 | $270,916 | $36,641 | $12,078 |
| Total | $24,412,653 | $26,495,267 | $30,047,755 | $31,661,464 | $24,290,239 | $29,499,599 | $30,842,490 |
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