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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Iron oxides & hydroxides | $25,922,514 | $24,260,507 | $21,145,698 | $23,716,657 | $15,583,514 | $24,568,117 | $29,793,484 |
| Earth colours cont. 70%/more by wt. of combined iron evaluated as Fe2O3 | $3,056 | $1,351 | $1,156,587 | $602,933 | $676,677 | $342,278 | $145,314 |
| Total | $25,925,570 | $24,261,858 | $22,302,285 | $24,319,590 | $16,260,191 | $24,910,395 | $29,938,798 |
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