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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $5,961,720 | $6,075,275 | $7,552,180 | $9,189,098 | $7,751,445 | $10,923,146 | $12,883,620 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $130,365 | $195,250 | $87,032 | $3,885 | $31,269 | $14,836 | $23,988 |
| Total | $6,092,085 | $6,270,525 | $7,639,212 | $9,192,983 | $7,782,714 | $10,937,982 | $12,907,608 |
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